Velux and Dormer Loft Conversions In Manchester
Dormer & Velux® Loft Conversions In Manchester

Loft Conversions Manchester

Rafter Loft Conversions are experts in converting both Truss & Traditional loft’s, a loft conversion in Manchester is a fantastic way of gaining that much needed extra room, whether a bedroom, study, playroom, bathroom or a craft room the choice is yours, whether you live in whether a semi-detached, detached or terraced house, We will be pleased to offer you a free design of your loft and a free no-obligation quotation.

Considering having a loft conversion in Manchester? with choosing Rafter Loft Conversions to undertake your loft conversion you probably could not choose a more experienced and dedicated loft conversion company to draw and construct your bespoke loft conversion giving it both style and flair. With having decades in the design and construction of every type of loft conversion, we believe we are the best loft conversion company in Manchester!

Rafter-Lofts undertake Traditional & Truss rafter conversions from Velux conversions and multiple Dormer conversions, our policy is to provide an incredible service to all customers and the very best in workmanship to produce your loft conversion that you will be delighted with.

A well designed and constructed loft conversion in Manchester can add a significant amount of value to any type of home, bungalow, semi-detached, detached or terrace, with our help you can have that extra room/s that you have always wished for, whether it be an extra bedroom or even a home theatre, with more people working from home, an office is a great solution.

Rafter Loft Conversions have completed countless loft conversions throughout Manchester, our prime focus and determination are solely centered around you, the client, your satisfaction is the driving force that helps us to create the most stunning loft conversions in Manchester. With your vision and our expertise, you can be sure that your loft conversion will capture your heart. If you are looking for a specialist loft conversion company in Manchester we are sure Rafter Loft Conversions are your premier choice.

Call our friendly team today on Manchester: 0161 885 3152 or Freephone: 0800 161 3815 for your free bespoke loft conversion quote & Cad drawing, or fill in the contact form below.

Loft conversion plans in Manchester, click HERE. Best Manchester loft conversion company


Rafter Loft Conversions can provide you a plan only service if required, this may help you to have your build plans drawn prior to any build, this procedure will then enable you to get costings off numerous loft conversion companies to tender for your loft conversion. We will undertake your loft conversion plans that not only conform to building regulations and importantly, to structurally calculate all your beams, whether timber or steel i.e. floor joists, rafter upgrades, window sizes (including dormer build calculations if required) and for all other materials involved for your loft conversion to be cost-effective.

A loft conversion drawing is produced for the purpose of designing your loft conversion to meet & comply with the local authority protocol planning and to have the plans meet all relevant building regulations. We can advise you on-site if you require upgrading of existing doors or to have your doors changed or if a sprinkler system is required to meet building regulations etc.

Our plan designer has over 30 years in the field of not only drawing architectural plans but also in the construction side of loft conversions, with such vast experience whilst listening to your requirements we will be able to design your loft conversion to suit your home and to give you the extra room you required, we are up to date with all current planning laws and regulations, it is essential for you to have your loft conversion designed that is cost-effective, safe, accurate and practical.

Rafter Loft Conversions redraw 100% of all plans we receive off draftsman, as we know through experience that our plans will work, especially regarding the staircase, the stairs are probably the most critical part of your loft conversion. Staircases at times must fit into an aperture that does not take a chunk of the landing/room but for it also to be aesthetically pleasing, the stairs must not exceed a pitch of over 42° for example, it may mean having a four wind instead of a quarter landing to gain height from the first floor. (ground if a bungalow)

Velux and Dormer Loft Conversions Plans In Kendal
The best Manchester loft conversion company. Click Plan To Enlarge

So how do we differ from other draftsmen undertaking loft conversion plans, well, the majority of company’s offering a loft conversion plan service, expect YOU to do a survey on your home and to send the dimensions of your home (including pictures) so if the measurements you send are wrong the onus is on YOU, and wrong dimensions can be costly very costly, as you will no doubt be charged for having the drawings amended each time, not only that, YOU will then may have to appoint a structural engineer to calculate your timber requirements, and have a floor section designed as illustrated.

Our superb loft conversion plan only service will require a physical visit to your home (by a mutual appointment) to undertake a structural survey, we will run through all options available and can give you a build guide price at this time if required, we will then draw your plans to meet current regulations including a floor plan and your structural calculations. Our aim is to provide you with a top-quality loft conversion plan coupled with a first-class service.

We will make a mutual appointment to undertake a structural survey of your home and you will be able to ask any questions regarding a loft conversion, we will have your plans drawn within 14 days of the visit, you will not only be sent your plans in an email for you to have a look and if there are any amendments you desire we can amend your plans prior to printing (within reason) as will also receive hard copies for your chosen loft conversion specialist to build off.

Rafter Loft Conversions can also send your plans for approval if you so desire, and take the headache from the application forms and submit them to the relevant Building Control bodies. 

Loft conversion plans cost in Manchester:

Velux/Rooflight prices start from only £895.00 Incl. including calculations.

Dormer plans start from £995.00 Incl. including calculations.

If you require full elevation drawings (Planning) prices start from £1,495.00 Incl. calculations.

Fill in our Contact form, or alternatively to speak to our friendly team Call: 0800 161 3815.


Velux loft conversions in Manchester start at £18,000 in a traditional loft (purlins) and from £24,000 in a trussed rafter roof (W shaped webbing) of course, this is dependant on the size and complexity, therefore, the price would increase, in 2008 this particular bungalow Velux loft conversion was in access of £160,000, the roof was raised from 33° to 42° with dutch hips on all sides (less impact on the street scene) the client did not want roof windows on the front elevation, therefore, we designed the front elevation to have three cottage (2.7m) dormers, and on the rear elevation, thirty-one polyurethane roof windows were installed. The client gained five huge bedrooms all with private bathrooms and walk-in wardrobes. Two impressive staircases were installed, both with gallery landings, and we installed solid oak flooring throughout, it took over forty-four thousand plain tiles to re-roof the property. The client gained an extra 3,200 ft2 and is the largest Velux loft conversion we have undertaken, the client purchased the property for £230,000 and a few years later, sold the property for £560,000, with the investment of their bespoke loft conversion. Velux loft conversion Manchester

A Velux loft conversion is when your bespoke conversion if formed within your existing roof space, without actually altering the profile of your existing roof. A Velux loft conversion is by far the cheapest option for a loft conversion and works well when you have sufficient and ample headroom to make full use of all the attic space available. Velux loft conversions require considerably less construction work and are not as disruptive as other forms of conversions. Installation of Velux Windows is a fantastic way of making your loft space feel spacious by allowing natural light and air.

Flat roof rear dormer loft conversions in Manchester start at £27,000 to generally £50,000 and give the maximum amount of additional internal space, the dormer is usually of a timber structure, and tile hung to match the existing aesthetics of your home. Rear Dormers are popular due to the fact that they create a large floor area and give good natural light through either large windows or even French doors. The dormer will have a horizontal ceiling and vertical walls, which provide additional floor space. Planning permission is not always required as the conversion can be carried out with permitted development rights and meets certain criteria. Flat roof rear dormer conversion is finished on the outside with plain tiles, 267mm x 168mm, the main colours used are Grey slate, Old English red, and Brown, recently introduced colours now include Anthracite and Black.

Hip to Gable dormer loft conversions in Manchester again start at £27,000 and are very popular in Manchester, as this particular loft conversion is for properties with an existing sloping side roof, mainly semi-detached houses (hipped roof) which means generally the side of your roof slopes inwards towards the ridge/chimney. The section of the roof which meets the main hip rafter is taken out including all compound mitre rafters (which are also called Jack rafters) once the ridgeline has been extended or replaced, new common rafters are inserted, transforming the hip-end to a gable end, A hip-to-gable style conversion would change the shape of the roof and give you a much larger loft area. (Mainly to have your new loft staircase to work above your original stairs to keep a continuous flow across the hallway) Externally this particular loft conversion is normally finished in hanging tiles to match the existing roof, a new section of the roof is built to fill in the area. Generally, houses with hip roofs do not tend to not have enough internal volume over their existing stairs, so a Hip to Gable is constructed to carry the new loft conversion staircase.

Cottage dormer loft conversions in Manchester start at £25,000 with incorporating a Velux conversion, Cottage dormers are usually situated at the front of a property. The dormer is a vertical window with a roof of its own, positioned, at least in part, within the slope of the roof incurring a lead valley at either side. Cottage Dormers are a perfect way to achieve headroom where required and are aesthetically pleasing to the eye. Cottage Dormers must be in proportion with your existing roof volume, as once constructed they are an integral part of the overall design of the property if they are built too large the results can look dreadful, as they overpower the rest of the house.

Are Mansard loft conversions in Manchester? Mansard loft conversions are not popular in Manchester and never have been, whilst some loft companys in Manchester state “Mansard conversions throughout Manchester,  and that you have probably seen many Mansard loft conversions and not realized what they are” We are still looking? If you are considering a Mansard! we would advise you to ask to view one. 

Mansard conversions were popular in London in the early 90’s,  however, in recent years’ planners in London haveMansard dormer on a front elevation in Manchester refused permission for front Mansards, this is to avoid the gap-toothed terrace roof lines. Now, space-starved residents in London are coming together to seek joint planning permission so they do not look out of character (as below) Mansard dormers were/are set back and the face of a Mansard dormer was built on an angle of 72° rather than a standard dormer conversion built at 90° the reason why Mansards were or are built being sloped is that there visually softer and not as intrusive on the street scene than the standard square dormer.

With being involved in loft conversions in Manchester and throughout the North West for over two decades we have never been asked to build a Mansard loft conversion, or have seen one come to think of it.

Block of houses with converted Mansard dormersAfter the great fire of London in 1666 all house had to be built in brick or stone and no wooden eves were allowed, roofs were pushed back behind brick parapets, party (dividing) walls had to be built and thick enough to withstand a minimum fire resistance of two hours, with having two hours of resistance to fire this would give adjoining neighbours the chance to escape and for the authority’s time to extinguish a fire before it could spread, from this time no properties were allowed a Thatched roof, roofs were to be only made from tile or brick (fire resistant)

As you can see from the pic, terraced house parapet walls in London, if not already, have to be built up either side to divide the Mansard conversion from fire spreading to the adjoining property.


The majority of loft conversions that are carried out in Manchester do not require planning permission due to the fact loft conversions are generally built under what is called your Permitted Development Rights. (see below) It is important to understand Building control and Planning permission are two separate entities: A simple explanation is every loft conversion with no exception is subject to very stringent building regulations, (Building control) as undertaking a loft conversion involves structural works, building regulations are not only in place for your safety but to make sure the new structure is structurally sound and conforms to all the current regulations, building control ensures your loft conversion is built to standards laid down by the government not only for the build of the loft conversions but also to oversee and take into account insulation, plumbing, and electrics.

Planning permission makes sure no build would be out of character to the street scene or any overdevelopment is made to a site, if any part of the loft development or alteration is undertaken on the front elevation (facing a public highway) i.e. flat roof dormer, cottage dormer, eyebrow, etc, this must go through for planning permission first.

If for any reason your loft conversion in Manchester does not meet building regulations standards as an approved build, the local authority can insist to have the work’s condemned and put back to the original state before any commencement of works, if you risk and choose not to proceed through the appropriate channels you will end up paying for it dearly in the long run.

It is not only the builder’s responsibility to follow the regulations but also the home owner’s.

Any new structural members or alterations to an existing roof must be undertaken by a structural engineer as this ensures both the structural sufficiency and stability of the structure, formal calculations will be requested by building control in support of an application for approval.

Any electric work undertaken for your loft conversion in Manchester must meet and conform to the IEE Wiring Regulations 17th Edition, BS1761 2008. The person undertaking the electrics should be registered under a competent person scheme, for example, NiC, Napit, etc, an approved electrician will connect the new circuit/s and undertake a series of tests, for example, RCD trip time, earth bonding, resistance test, and continuity test, once completed an electrical certificate will be issued, a copy of your loft conversion with a copy of the electrical certificate should be put with the deeds to your home as It is important for, if and when you come to sell your home if you cannot produce the correct paperwork for the approval of your loft conversion, not only can it decrease the value of the property, it may put off potential buyers.

Every loft conversion with no exception is subject to building regulations, having a loft conversion is a major structural job, for example introducing new calculated floor joists, these must not exceed past the maximum span so they have the integrity of support, you have to take in account the insulation, electrics, and plumbing. Building regulations are in place not only to make sure the new structure is structurally sound and conforms to regulation but for the safety of the workers and property owners.

All building work, plumbing, and electrical works are checked by the building inspector to prove that it is too standard, but also it is important that you follow the building regulations have been followed throughout the build for other reasons as well.  Insulation is again a major Loft Conversions Chorlton Cum Hardy, Manchesterpart of building control, it is good to practice to take photos throughout the build, so if let’s say you need to put the floor down in a bathroom area to set out for your ceramics, etc, if pipes or cables are now running through your floor joists taking a picture to show that all holes cut are acceptable with all cables and pipes clipped and a minimum of 50mm down from the top of the new joists a photo should be sufficient. The appointed building inspector is there for one reason only, to make sure that all works that have been carried out for your loft conversion are safe and that the materials have got the appropriate structural integrity.

If and when you ever come to sell your home and you cannot produce the correct paperwork or the approval for your loft conversion not only can it decrease the value of the property, it will probably put off potential purchases from buying your house.

Your loft conversion can look good from the outside and inside, but it if doesn’t meet building regulations as an approved extension in the eyes of a surveyor the work will be condemned, by not going through the proper channels you will end up paying dearly for it in the long run. It is not only the builder’s responsibility to follow the regulations but the home owner’s as well, heavy fines can be imposed on both parties, not only that, they will also require your loft conversion to be pulled down and put back to the original condition.

DIY, it is important to follow the building regulations, not only for yourself but also to ensure the safety of others around you. You should not just rely on your tradespeople to comply with the building regulations but also refer to them when you undertake any DIY work.


The Government relaxed some forms of planning permission alongside Permitted Development in the Town and Country Planning Act of 1948. Permitted Development Rights mean that you can extend your home up to a certain percentage (see below) without full planning permission, however you must follow the many rules. In 2008 Permitted Development rights were reviewed in an attempt to stimulate growth in the building sector, Permitted Development rules were ‘relaxed’ supposedly for only a few years. The level of work you can undertake within your Permitted Development rights depends on a variety of factors including your location and the extent of work you have already carried out. It is not just regulations that were relaxed for a loft conversion but other building works.

Permitted Development rules for a loft conversion in any roof space created must not exceed these volume allowances of 50m(cubic meters) for detached and semi-detached houses & 40m3  (cubic meters) for terraced houses.

Loft extensions are NOT under P.D for houses on designated land.

No part of the extension is to be higher than the highest part of the existing roof.

Any side-facing windows must be obscure glazed and non-opening unless the parts which can be opened are more than 1.7 meters above the floor of the room in which it is installed.

An extension beyond the plane of the existing roof slope of the principal elevation that fronts a highway is NOT a P.D.

Loft conversion dormer’s apart from hip to gable ones are to be set back, as far as is practicable, at least 20cms from the eaves. The 20cm distance is measured along the roof plane. The roof enlargement cannot overhang the outer face of the wall of the original house.

Verandas, balconies, or raised platforms are NOT a Permitted Development.

Materials should be similar in appearance to the existing house

Bats are a protected species you can NOT undertake any conversion if Bats are present.

Building Regulations must be adhered to on every loft conversion even with P.D.

You have no P.D. rights if your dwelling is categorized as a listed building.

No P.D. in designated areas, i.e. Conservation Area or an area of Outstanding Natural Beauty, etc.



Your bespoke loft staircase is probably one of the most critical parts of your loft conversion, a badly designed staircase or in the wrong place/position can have a damaging effect, not only to your loft conversion but to your home. The loft staircase gives people the first impression so it is important to have it looking like it has always been part of your home, and not squeezed in at a later date.

Dormer & Velux Loft Conversions ManchesterThere are many designs when it comes to your staircase, for example, would you like it to start with a Curtail tread or a bullnose, would you like the first two treads starting before a newel is fixed, etc.

Regulations state a minimum height requirement when you step off the last tread is to have 2-meter headroom clearance, in special circumstances, this can be reduced to 1.9 meters at the centre as long as the side (String) of the stairs is no lower than 1.8 meters.

Your new staircase for your loft conversion should have a maximum rise (height) of 220mm and a minimum going (tread depth) of 220mm, stairs should have a maximum pitch of no more than 42°, yet there is no regulation to the width of a staircase. Handrails should be at least to one side of the staircase, both sides of the stairs if they are over a meter wide, handrails on the stairs or any balustrade should be set at least 900mm height, no openings (between spindles) in the rake or balustrade should allow a gap of no more than 100mm.


A house that is extended or altered to add a third storey has to comply with stringent emergency escape provisions. The conversion of a roof space that provides one or more new habitable rooms at a second-floor level should include the following provisions:

  1. The existing stairway/stairwell at the ground and first floor levels should be enclosed and the stairway should open directly to a final exit, or to space which provides two escape routes, each to a final exit, and separated from each other.
  2. The new stairway must comply with the requirements of the regulations. A new staircase within an existing stairway enclosure should be separated from any new rooms and should be separated from that room and the rest of the house by fire-resisting construction.
  3. Escape routes over balconies or flat roofs (of fire-resisting construction) will require to be protected by guardrails in accordance with the Regulations.
  4. The installation of hard-wired and battery back up smoke alarms in all habitable rooms off the escape route is mandatory unless you have an open plan staircase a sprinkler system will have to be introduced.


The pitch of any stair leading to a room within the loft must confirm with Building Requirements, they must also conform to requirements of escape, and require some form of fire protection.

Manchester Cottage dormer loft conversion, three bedrooms with walk in wardrobes and private bathroomsAdding a loft conversion to a two-story building effectively increases it to three storeys with consequently increased requirements, there is no restriction on the type of staircase, which may be a straight flight, a winding staircase, a quarter landing or a half landing. Loft ladders are NOT to be used to provide access to any new room in the roof other than for storage.

In instances where there is insufficient headroom at the top of a staircase, a Velux roof window can provide additional height as well as light and ventilation. An alternative means of achieving the required head height is to create a dropped landing. This also creates an interesting design feature.


Roof windows are a major consideration when planning a loft conversion, not only for building control but because your window positioning will be fundamental if you want to make the most of your views. The most common windows to install are Velux roof windows. These particular windows follow the pitch of the roof and depending on which model can open inwards or outwards either one brings beautiful natural light into the room. A roof window should be introduced whenever possible over the new staircase this not only allows light on the new staircase but on the existing landing below.

Dormer Windows are vertical rather than sloping and are built into usually a rear dormer, most dormer loft conversions carried out now have full-height windows from floor to ceiling, this allows an incredible amount of light into the loft conversion and for a fabulous panorama.

WHY CONVERT YOUR ATTIC:                     

You may like to create your own little haven of tranquillity or simply get the kids out of the way, whatever your needs, a loft conversion may be your solution. With increasing house prices and with the steep cost of moving, it’s a great idea to convert your attic space, more and more people are starting to adapt their homes and convert their lofts as an alternative to moving.

It is not just space that loft conversions can add to your property, but a well-converted loft can add over 20% to your home, whether you convert your loft into a workspace, games rooms, a bedroom or a living room it will all help increase the value of your property. Homeowners are also increasingly using their loft as lodger room/s, so you can actually make money off your loft conversion.


When a loft conversion is undertaken provisions for an escape must be considered throughout the full extent of the escape route. This means that additional fire protection will be necessary to the existing parts of the house. For example, a typical loft conversion to a two-storey house will result in the need to provide FD20 fire resisting doors or equivalent, and some circumstances stud partitions will have to be introduced to protect the stairway.

Fire safety is a big issue and more complicated when your loft conversion transforms a two-storey house into a three-story home, fire escape windows that are over 4.5m from ground level are not viable, so Building Regulations require a protected stair enclosure that leads down to the final exterior door. If your staircase to the new loft room rises from an existing room, (i.e. bedroom) rather than a hallway, there will not be a requirement from building control to have a door on the new floor level meaning the loft conversion would be open plan, the door still must be equivalent to an FD20 or greater. FD20 doors are not required in bathrooms etc. Each habitable room and landings from the escape route require a smoke detection circuit that are all interlinked so that all smoke and heat alarms sound off when one is activated, these have to be mains powered with battery back up in case of a power cut. If you have an open plan staircase leading from your lounge, for example, a sprinkler system can be introduced helping to distinguish a fire.


From your initial contact, we will arrange a convenient time to suit you to visit your home and discuss your requirements, each loft conversion is designed to your own individual specification to gain maximum comfortable & versatile living. The main loft conversions are a Velux / Rooflight Conversion, Hip to Gable Conversions, and of course the most popular to gain the maximum floor area the Rear Dormer Conversion. All flat roof dormer roofs are covered in a seamless rubber membrane unless a Cat Slide roof is introduced.

Following our visit, we will prepare you a written and fixed price proposal on your loft conversion, Manchester loft conversion for a games room, this spacious games room was perfect for the client.if Rafter Loft Conversions are your perfect partners a time & date will be arranged for our architect to visit your home to undertake a structural survey in order to prepare your plans for approval after you have approved the plans we will submit them to building control along with structural calculations to get full approval. 

On the mutual convenient date to start work, the bulk of the materials will be delivered on the first morning. Once the steels and primary beams are in place the construction of the floor can commence, whilst at this stage, your floor to floor is determined, then and only then your bespoke staircase will be ordered to match the new floor to floor height. The next stage is to upgrade your roof structure and fit if any Velux roof windows, following the installation of the windows the insulation is then introduced to make the new room conform with the latest regulations.

Now we’re ready to build the new internal walls and divide the loft into rooms you require, once completed the stairwell aperture will be carefully cut out, then your bespoke staircase will then be fitted to access your new loft room/s. After installing the staircase there are a few days to finish the joinery work ready for the plasterers. Our time served plasterers will commence work when all joinery has been completed.


Regulations state there is a specific requirement that glazed areas must be equivalent to a proportion of the floor, any habitable room should have a source of daylight and a view out. Good practice would suggest a minimum glazed area equivalent to 1/20 of the floor area for this purpose.

Roof windows can provide these facilities and dormer windows the general appearance of a roof should not be affected by the conversion of the roof space, even if the height and shape have not been affected.

If a roof overlooks a ‘public highway’, or any projection above an existing roof plane it will require planning approval. Roof windows parallel to the slope of the roof do not require planning approval as they do not project significantly and will, therefore, have a limited effect on the appearance of the roof. In a particularly critical environment, such as a conservation area, a recessed type of roof window can be used instead of a standard type.

Loft conversions in Manchester are a cost-effective alternative to moving home. Rafter Loft Conversions offer you a project that is tailored to meet your individual needs and requirements so you can be confident that the finished loft space will be perfect for what you had in mind.

Whether you are looking to gain an additional bedroom, an office or even a home theatre, there properly isn’t a more experienced company to choose than Rafter Loft Conversions, we guarantee you will be fully satisfied with the finished results, no matter how big or small your requirements.


Manchester Velux Loft Conversion with Velux roof windows, giving ample naturl light into the new master bedroom.Building Regulations must be adhered to on every loft conversion as Building Regulations set standards for the design and construction of buildings, Order 2015: sets out classes of development for which planning permission is automatically given, this is only provided that no restrictive conditions are attached or the development is exempt from the permitted development rights.

Planning legislation allows accommodation to be extended into the roof space without planning permission, providing the extension is within the rules set out under the Town & Country Planning Legislation. Such alterations are made under what is known as permitted development rights. Alterations and inclusions are defined under Schedule 2 which is separated into two classes:

  • Class A Part 1 Enlargements, improvements or alterations of dwellings generally.
  • Class B Enlargement or conversion of a dwelling that involves addition or alteration to the roof.

The primary aims of planning control are to prevent excessive increases in the house volume and to prevent an increased height or substantial change of the shape of a roof that will affect the visual relationship of a building to its neighbours. However, planning permission is not required unless the roof volume is increased, in planning terms the ‘volume’ of a house includes the roof, whether occupied or not therefore merely converting the roof will not increase the existing volume. The advantage of using the space within the existing roof height and shape is that, in the majority of cases, planning approval will not be required for the conversion. However, if the roof conversion is part of a larger extension of the house, the total increased volume will have to comply with the statutory limits. Planning approval will always be required if there is a change of use of the building involved. Planning approval will also be required where roof windows project above the roof plane on the slope facing the highway.

Permitted development rights are restricted in conservation areas, and areas of outstanding natural beauty and on any listed building. Any alteration to a building, which affects its appearance in these circumstances, will always require planning permission for any alteration. Any work to a listed building, even if it does not alter the appearance will require listed building consent.

When a loft conversion on a building is planned, all building work must conform with the statutory requirements of the relevant national Building Regulations, when a property or building exceeds two floors there are more stringent requirements to be met. These cover the requirements, such as structural stability, thermal insulation, the fitness of materials, etc. They are supported by examples of the construction that are accepted as capable of meeting the requirements. Other methods may be acceptable, but compliance must be demonstrated to the satisfaction of the Building Control Surveyor. Building Control Surveyors often adopt a flexible approach to conversion because of the individual nature of the work, but they should be consulted at an early stage in the design.


If the proposed project requires planning consent, then an application has to be made to the local authority using relevant application forms. The application has to include details of the design showing how it affects the appearance of buildings concerned. There is a fee payable to the local authority who are required to notify the applicant of the decision of the planning committee with an agreed time scale. The application can be made by anyone involved in the project but is often made by the architect, surveyor, or a loft conversion specialist.

Building Regulation consent can be applied in one of two ways, either a Full Plans Application or by giving a Building Notice. A Full Plans Application is the most common route and involves sending in sets of plans showing all details and calculations subject to the Building Regulations. The local authority is required to give their decision within an agreed time scale. An inspection fee is payable to the Building Control Surveyor who will visit the loft conversion at key stages during construction to ensure that work complies with the regulations.

The alternative of giving a Building Notice costs the same but the total fee must be paid when the Building Notice is given. Full plans are not required but it is probable that the Building Control Surveyor will request a layout plan of the loft conversion with details of beam sizes etc and may request support structural calculations. The Building Notice must be issued before work commences and the onus is on whoever is carrying out the work to comply with the Building Regulations. The Building Control Surveyor will visit the site frequently to ensure that work complies with the Regulations.


Where a new bathroom is located in a loft conversion, provisions are required for the height and for hot and cold water supplies and drainage. Access must be made available for maintenance to any water tanks re-located into the void areas.

If pipe-runs from the hot water cylinder are long, and the appliances will only have occasional use,Loft Conversion Bathroom In Manchester. for example, a guest bathroom, the use of electric instantaneous water heaters to basins and showers might be considered as an alternative.

If you choose to have a bathroom in your loft conversion the position of the existing drainage will influence the location of sanitary fittings in that there is a maximum permitted length for unvented branch connections from baths and basins. If the lengths of branch pipes exceed these requirements they must be directly ventilated to the external air.

Alternatively, a ventilating pipe may terminate inside the building if it is fitted with an air admittance valve, an AAV installed internally are usually fitted within rooms or in the roof space, the great advantage of using an AAV is that they remove the need for holes through the roof or external walls, and reduce the amount of pipework required.


New structural members or alterations to existing structural members in order to convert an existing roof must be undertaken by a structural engineer, this is to ensure both the stability of the existing structure and the structural sufficiency of the new structure, formal calculations may be requested by Building Control in support of an application for approval.


All walls separating dwellings must have adequate airborne sound insulation. Existing separating walls in roof spaces may not provide adequate resistance to airborne sound if the roof is converted into occupied space on one side of the separating wall. If an attic room abuts a separating wall, the wall must, therefore, be lined to provide equivalent sound insulation to the separating wall elsewhere in the building.

Gaps left in existing separating /party walls should be filled with bricks or blocks with a sand and cement mix. If a timber frame is used it should only be fixed to the floor and roof structure, any gaps between the framing and the floors and roofs sealed with acoustic sealant. Separate timber frames will reduce the roof space dimension between separating walls by approximately 90mm.

Plasterboard lining to a timber-framed separating wall will normally be adequate for fire resistance but additional plasterboard may be required to improve sound insulation. Mineral fibre/plasterboard laminates can be used to line timber frame and masonry separating walls to improve both sound insulation and fire resistance.

In residential dwelling houses, if a loft conversion is going to be constructed, construction should be designed in such a way that it provides reasonable resistance to sound from other parts of the same building and from adjoining neighbours.


Windows to habitable rooms should be proportional to the floor area with background ventilation as required in all rooms. Bathrooms should be provided with an opening window, and a mechanical ventilation fan should also be provided which may be operated intermittently.

Loft Conversions Hale, Manchester.

The introduction of a room into a previously open roof space will restrict the flow of natural ventilation through the roof intended to avoid condensation. The existing ventilation provision, if any, at the eaves may have to be increased to maintain a continuous airflow, a 50mm gap should be maintained on a flat roof dormer to provide a lateral flow of air. Where accommodation occurs within a roof space. It is important to incorporate a vapour control layer on the warm side of the insulation for both walls and sloping ceilings. Adequate room ventilation is required to prevent the build of water vapour within the rooms. Extract ventilation to bathrooms and kitchens and background ventilation to habitable rooms should provide sufficient ventilation for this purpose.


Any habitable accommodation inserted into the roof space will be above this insulation and has to be insulated in line with the requirements of the current National Regulations. This can be done by either insulating the whole roof pitch from the ridge to eaves or by insulation around the new accommodation only.

The first method is more complicated to do and will involve more insulation material, particularly in the apex of the roof.

The second method saves on the amount of insulation required, the walls, and any part of the sloping ceiling, and any horizontal ceiling over the habitable space will, in this case, need to be insulated.

Any gable wall in the roof accommodation will have to be insulated to conform with thermal requirements for external walls. This can be done by using plasterboard with insulation laminated to the back face or in timber-frame construction by inserting mineral wool insulation between the studs before lining them with a vapour control layer and plasterboard.


All loft conversions must conform with fire requirements in the National Regulations. This largely concerns the conversion of an upper floor ceiling to new floor construction, which must then achieve the fire resistance of an intermediate floor – normally 30 minutes.

The requirement for fire resistance includes any member supporting a floor, even if this extends beyond the actual floor area of the accommodation, I.e. between the outer wall of a loft space and the external wall at the eaves. (Note, if the roof accommodation will be of a different occupancy, such as a separate flat, to that on the floor below, it may be necessary to achieve full separating floor fire resistance, usually 60 minutes.)

If an existing floor supports a new staircase to habitable space in the roof, If an attic wall forms part of a separating wall, between properties, it must achieve the full fire resistance of a separating wall.

If the roof space incorporates a chimney or a flue any new construction must comply with the space separation requirements for combustible material. No combustible material other than a floor, skirting, picture rail, mantle-shelf, or architrave should be closer than 200mm to a flue in a chimney or 40mm from the outer surface of a masonry chimney. Nails, screws or other metal fixing timber to a masonry chimney should be at least 50mm from the flue always remember to consider the position of the chimneys and ventilation stacks in relation to the position of windows.


Walls and ceilings to any new accommodation within the roof must comply with the appropriate spread of flame requirements. The plasterboard will meet the spread of flame requirements. Any surface that slopes at an angle of 70 degrees or more to the horizontal is deemed to be a wall.


Creating that much needed extra room in your home with a loft conversion means you are not taking a chunk out of your land mainly your garden, so it is ideal to move up, and not out. People like to stay in the same area even if moving so gaining the room in the home you already love is not only financially a great deal cheaper than moving especially with the stamp duty

Creating a “granny flat” is another great reason people have a loft conversion undertaken in Manchester, considering to have a parent go into a retirement home may not be the best option or even something that the family wants to do, so by creating a living space in the loft, you have the comfort of knowing they are close but are still able to carry on your life in separate rooms of the house. Building a loft conversion whether it’s a Velux conversion or a dormer conversion it will also be a lot less expensive than paying for a retirement home.

While you are staying put if you do decide to convert your loft then when it comes to selling your home you will no doubt find that you have increased the value of your property.


There probably is no doubt Velux® windows are the world’s leading roof window manufacturer, there are two main types of roof windows, and numerous sizes to choose from, top hung & centre pivot windows come in three internal finishes, white painted, pine and polyurethane, polyurethane windows are ideal in humid rooms like bathrooms.

Velux roof windows in a loft conversion,Sale, Manchester
A great vision sees the light of day. 1st April 1941, Copenhagen, Denmark. Bringing light to life.

The top hung window is operated with a handle at the bottom of the frame for it to fully open outwards which are a perfect choice for loft conversions, this particular window is suitable for roof pitched between 15° and 55°.

The center-pivot roof window has a handle (bar) at the top of the window making them practical to have furniture underneath as the window swivels at the centre point, this particular window is suitable for roof pitches between 15° and 90°.

The Velux Integra® window is for pure comfort, Integra windows are remotely controlled so every window can be opened at the touch of a button, again these windows are suitable for pitches between 15° and 90°.

Velux Cabrio® balcony windows are the largest of windows and open in seconds, the innovative balcony design can add stunning views for any loft conversion, the suitable pitch is between 35° and 53°.

Each Velux® window has its own code, for example, a GGU SK06 (114cm x 118cm) is a centre pivot window in polyurethane, whilst the GPL SK06 is a top hung window in Pine, the same is with the window flashing kits which are required for each window, an EDW SK06 flashing is for tiles with a profile not exceeding 120mm, and an EDP flashing is for tiles with a maximum profile of 15mm, therefore it is imperative to choose the correct window and flashing kit for your home.


Having a loft conversion is generally to gain a much needed extra bedroom, and if you’re lucky enough to have the room, gaining an en-suite/bathroom, which of course brings you peace and quiet as you have the only room in the top of your home, or maybe just to get the kids out of the way. Of course, there are many reasons for a loft conversion in Manchester, a popular choice today is to gain a study as a lot more people are working from home (which isn’t bad just walking upstairs to your office) but also craft room, cinema, playroom, living room or even a spare room for guests.

It’s not just the extra room that a loft conversion can make to your home in Manchester, you also may get a great return on your investment, as a loft conversion can add over 20% to your home if designed and built correctly.

Your cold, dusty & empty loft may not look like much at the minute, however, with a bit of imagination and creative design you can turn the attic space into anything you desire, some clients have the image of being able to lie down and look up through their new Velux roof windows at the sky in an evening away from the noise from the rest of the house.

Installing a bathroom into the loft area can slightly be more demanding, as ideally, your new loft bathroom toilet requires to be located near or over your existing soil pipe to allow adequate fall for the waste etc, if the soil pipe is not accessible then you have to introduce a macerator which is used to move the waste to the main soil stack. (Plumbing waste is reliant on gravity and falls to move liquids from one point to another but there are situations when you can’t rely on gravity alone and need to pump these fluids in a particular direction. Macerators work by pumping waste solids into liquids by using a high-speed rotary blade which then pumps this waste into the drainage system. They are a great choice when wanting to create another bathroom and the existing soil pipe is not accessible. There is a wide range of macerators for sale with a choice of brands and power options available.)

If you are considering a music room you can also soundproof the new loft room with soundproof plasterboard and also introduce acoustic loft installation both in the floor and walls, which helps to the sound. Using your loft room to create a playroom is great for the kids but may also give you some peace. You may want an extra room for a hobby such as painting, craft or collecting trains, etc.


Well, the higher your roof the more spacious the room, houses built before the 1960s are suitable due to the way the roofs were constructed and are easier to convert than the modern roof structure the minimum height you will require in a traditional loft (Purlins) is 2.2m this measurement should be taken from the top of the existing floor/ceiling joists to the underside of the ridge beam.

Minimum height for a loft conversion in Manchester.
                  CLICK TO ENLARGE

From the 1960’s modern Trusses were introduced, even though there are a few different trusses on sale the most common for a standard home is the 7 Node fink truss, this particular truss comprises of tension webbing and compression webbing, the webbing timbers should not be removed under any circumstances until your roof has been upgraded with new supports in place (i.e. steel mainly) then the tension/compression webbing can be carefully removed as your loft conversion progresses. Truss loft conversions can be more demanding due to the framework being in place but still can be converted. The minimum height required for a truss rafter roof loft conversion in Manchester is 2.4m, again the measurement should be from the ceiling joist to the underside of the truss, (gang plate)


Working and undertaking a loft conversion can be tricky therefore it’s important when building the loft conversion that you follow loft safety, as you need to make sure that you not only keep yourself safe but whoever is involved in the particular loft conversion build by following appropriate loft regulations and building regulations.

The first thing is to make sure you have secure footing, this would probably mean placing floorboard sheets until you completed the necessary works in that particular area. Once you have the new floor down in your loft conversion then you would fit your bespoke staircase, again this can be fairly hazardous as you have to juggle the stair sections into place before getting a secure fixing, sounds easy, but you have to have the risers vertical and your treads horizontal and to make sure your integral newels are plumb.


Your dusty loft may not look like much at the moment but all it takes is a bit of imagination and creativity you are able to turn it into anything you desire, a loft bedroom is, of course, is one of the most common uses for a loft conversion. People have the image of lying in bed and looking up through their window at the stars or having their own private bedroom away from the noise of the rest of the house.

Adding a bathroom into the equation may make things slightly more complicated the main concern in a loft bathroom is the toilet installation, toilets need to be located near a soil pipe to get the adequate fall for the waste, if the soil pipe is too far away then a macerator can be installed which is used to move the waste to the main soil stack.

Using your loft to create a playroom will not only be popular with the children but will also give you some peace and quiet. You can soundproof your loft by fitting the walls with soundproof boarding. You can also get acoustic loft installation which will be able to keep the sound. Converting your loft into a playroom is a good idea for both young and old children, it can be a good storage place for children’s toys and give older children a bit of independence.

Having the benefit of an extra room in your house means you can afford to create it into anything you wish. It may be that your hobby is collecting trains or for painting, you can create your very own hobby room and have the comfort of knowing you are not disturbing anyone else in the home. Creating a home office in the loft is also a popular conversion choice, the list is endless.


Introducing new floor joists in a loft conversion:

Your existing ceiling joists are very unlikely to be adequate to act like floor joists, therefore fitting new deeper joists between existing ceiling joists if existing binders are to be removed the existing ceiling joists will require support from the new floor joists and their weight should be added to the floor joist dead load. Position new steel beams above the existing ceiling. Insert new floor joists into the beam web.Floor joists for a new floor in this loft conversion

New partition loads in the roof space should not be supported by the floor decking only, additional joists will be required below internal non-load-bearing partitions running parallel with the floor joists.

Floor openings formed for stair access can impose heavy loads on trimmers. Trimming joists onto existing load-bearing walls, or onto new walls or floor beams either transfers these concentrated loads. Double joists may be required as trimmers to frame stair openings.

Floor covering in a loft conversion:

Floorboards should be cramped before screwing, and all screws should be below the board surface, screws should be 55mm in length 3.5mm in width. Three screws should be used at each support. The ends of boards should be butted over joists with both boards adequately supported. End joists should be staggered so that they are at least two board widths apart. Any board should span at least three joists.

Flooring to habitable roof space should be laid in accordance to reduce vibration and damage to existing plaster ceilings to be retained, fixing floor decking to any floors by screwing is preferable to nailing.

The loft floor decking is usually fitted to a house that already has heating, therefore, the moisture content isn’t really an issue and this prevents excessive shrinkage and possible distortion, tongued and grooved flooring is usually used in loft conversions 2400mm x 600mm.

Soundproofing and insulating your loft conversion in Manchester:

Manchester loft insulation is critiacal, and helps you save money in the long runInsulating your loft conversion correctly will in no doubt save you money in the long run, insulation comes in variety of products so if you plan to convert your loft into a cinema, entertainment room or especially a music studio loft soundproofing is a must, this can be achieved with acoustic insulation in all partition walls, under building regulations any wall that has a fixed door does not have to be insulated but it is good practice to insulate every wall including the walls with doors if it is not for acoustic value it will help with thermal values. If your loft conversion is going to be used as in the above you can apply soundproof plasterboard, the density of the board is higher than that of standard plasterboard. Soundproof plasterboard comes in two sizes 1800mm x 900mm and 2400mm x 1200mm both boards come in 12.5mm thickness, acoustic plasterboard can be used to help reduce noise transmission through walls and ceilings. Rafter – Lofts would advise that this plasterboard should be used in combination with other products to achieve the maximum levels of soundproofing.

Beam supports:

Beams can be built into existing cavity walls but to allow for end supports the beams must be approximately 200mm longer than the clear span of the room or space. Timber beams should not be built into external solid masonry walls. Heavy-duty steel hangers are an alternative means of supporting timber beams. Steel hangers should be appropriate for the load to be supported. Hangers should be supported directly by bricks or concrete blocks with the face of the hanger tight against the wall face.

Only timber posts or studs must support timber beams in timber frame walls. This may require walls to be opened up to insert new timbers. Alternatively, it may be possible to position the post against the wall face, its necessary to insert new studs on posts into an external timber frame wall, the vapour control layer must be reinstated and the effect on the thermal insulation of the wall considered.

Roof Rafters:

If new rafters are to be inserted between existing ones or alongside, they should be selected from span tables set out by building control, if purlins are repositioned, it is essential to check the effective rafter span, the overall rafter length required should be checked against the availability of suitable timber and provision for lapped or spliced joints made when necessary.

The roof imposed load and dead load from roof tiles or slates, timber battens, underlay or boards, rafters, insulation, and linings is measured on the slope, the total weight is resolved having structural calculated upgrades.

Roof windows in a Manchester loft conversion:

The specification of the windows is particularly important in loft conversions, not only are they crucial in providing natural light but also sufficient ventilation. Both center-pivot and top-hung windows can be rotated to provide access for cleaning. Repainting of the pre-finished external aluminium external window flashing is not necessary.

Incorporating a roof window will usually reduce the total roof load since the weight of the window may be less than that of the roofing materials, which it replaces. The imposed load on the roof is unaffected. Narrow roof windows can be fitted between rafters of 600mm spacing, otherwise trimmed openings will be formed to fit the required size of the window.


Having bats in your roof space does not necessarily mean that work cannot be carried out however it does mean that the work Loft Conversion Manchester.will need careful consideration, especially in terms of time and materials. All of the UK’s bats and their roosts are protected by law so if you are planning any building or remedial work that may affect a roost, The Bat Conservation Trust’s should be contacted for advice and will provide advice on how to proceed while causing minimal disturbance to bats.

There are more than 1,300 bat species in the world, and bats can be as large as a small dog or as small as a bee. The largest bats have wingspans of up to 2 meters with a bodyweight of up to 1.5 kilograms. At the other end of the scale is the bumblebee bat, weighing only 2 grams. We only have only 18 species of the 1,300 bat species in the UK. It is an illegal offence if you: Capture, injure or kill a bat, intentionally destroy their home or disturb them, intentionally obstruct access to a bats roost or exchange or sell a bat, whether dead or alive.


When purlins and supports are to be removed to form usable space, alternative support must be provided to the rafters. It is important to establish the total function of the existing purlin since in some cases purlins and ties may provide resistance to outward thrust as well as vertical support.

A number of alternative solutions are possible depending upon the size and construction of the roof, such as the following (either individually or in combination)

  1. If existing purlin support has to be removed alternative support off existing load-bearing walls below or onto a new supporting structure in the roof space is required.
  2. Insert new purlins at new levels, this may necessitate additional rafter support because of the longer rafter span between the new purlin and the eaves. This can be provided by an additional purlin or by stiffening the rafters with new timber alongside the existing.
  3. Insert a ridge beam, the simplest way of installing a ridge beam is to go from gable/party to gable/party walls. Inserting a ridge beam should be considered when it is necessary to remove existing ceiling joists. Adding a ridge beam minimizes outward thrust in the rafters.
  4. It is uneconomic to use solid timber purlins for unsupported spans in excess of 4.0m. Internal load-bearing walls or posts should be used where the span exceeds 4.0m. For longer spans, or where no intermediate support is possible, fabricated timber or steel beams should be considered
  5. Deep beams may be used to support both roof and floor load, using either metal hangers nailed to the primary beams to carry the floor joists.

Alternative timber beams include:

  • Plywood web I-beam
  • Plywood box-beam
  • Steel flitch beam
  • Glulam beam (Glued Laminated Timber)


A house that is extended or altered to add a third storey has to comply with stringent emergency escape provisions. The conversion of a roof space that provides one or more new habitable rooms at second-floor level should include the following provisions:

  1. The existing stairway/stairwell at the ground and first floor levels should be enclosed and the stairway should open directly to a final exit, or to space which provides two escape routes, each to a final exit, and separated from each other.
  2. The new stairway must comply with the requirements of the regulations. A new staircase within an existing stairway enclosure should be separated from any new rooms and should be separated from that room and the rest of the house by fire-resisting construction.
  3. Escape routes over balconies or flat roofs (of fire-resisting construction) will require to be protected by guardrails in accordance with the Regulations.
  4. The installation of hard-wired and battery back up smoke alarms in all habitable rooms off the escape route is mandatory unless you have an open plan staircase a sprinkler system may be introduced.


  1. If Scaffolding is required for your loft conversion this will be put up a couple of days prior to works commencing.
  2. The main primary beams are calculated to take the new floor and roof load, are put in place, if steels are required these will be either craned into position or spliced into manageable sections and winched onto the scaffolding, ready to put in place.
  3. The floor joists are put in place as per structural calculations, i.e. 300mm centres to 450mm centres.
  4. Once the floor is decked the rear roof can be stripped and a rear dormer or a wrap-around can be constructed, if applicable. All dormers are built within a day and securely sealed.
  5. The roof structure will be upgraded for the installation of roof windows.
  6. The carcass of the loft is insulated and plaster-boarded, any wiring or pipework will be put in place prior to plaster-boarding.
  7. Partition walls are then introduced where required.
  8. The stairwell will be cut out now for the installation of your bespoke staircase, and all second fix joinery completed, door frames, doors, skirting, architrave, handrail, spindles, etc.

Second fix electrics, plumbing, and plastering will be all completed in the final week of works.


Loft conversions usually have low heat losses due to the high elemental insulation requirements required, as long as the existing boiler has sufficient capacity there should be no problem adding additional radiator/s. If the conversion forms part of a larger refurbishment, then a new central heating system may be viable. An electrical radiator can be introduced in your new loft room if the pipework is inaccessible.


Stunning Velux loft conversion in ManchesterWith ever-changing technology long gone are the days of hot bitumen and felt for flat roofs (Ethylene Propylene Diene Terpolymer) EPDM Firestone RubberCover™ consists of two layers of rubber compressed together at heat to give the ultimate watertight blanket. RubberCover™ offers unmatched resistance to the ozone, and UV radiation even at high or low temperatures, and offers a life expectancy of over 50 years which is perfect for flat roof dormer conversions. The first installation of Firestone RubberCover™ was installed in Wisconsin USA in 1980 and still remains in service today. Since the production RubberCover™ Firestone has produced and installed over 1,000,000,00 m(Billion) around the world, from freezing temperatures in Alaska to the desert sun in the Arabian Gulf.

Rafter Loft Conversions are approved contractors for the installation of Firestone RubberCover™



A Velux/roof light loft conversion in Manchester is when a loft conversion if undertaken within your existing attic space and without altering any of the profile of your roof. A Velux loft conversion is the cheapest option of a loft transformation and works out best when you already have good size headroom and are able to make full use of all the space available. Velux loft conversions require much less construction work and are not as disruptive as other forms of conversions. And with the installation of Velux windows is a great way of making your loft space feel spacious with allowing natural light and air. With a Velux loft conversion in Manchester, the cost is dependent on a few factors, the overall size of the attic space, fixtures and fittings, materials, etc. Velux loft conversion prices start from £18,000 this would be for the most basic of conversions, dependant on the scale of the conversion it can add thousands of pounds. A basic loft conversion from start to finish is usually completed within three weeks.


Flat roof rear dormer loft conversions in Manchester give the maximum amount internal space, the rear dormer is generally made from a timber structure, and are finished externally with plain tiles (267mm x 168mm) the main colours used are Grey Slate an Old English Red, although recently Anthracite and Black tiles are available to match your existing aesthetics. Rear Dormers are the most popular of loft conversions due to creating a large floor area with either a large window or even French doors or even both. The dormer will have a horizontal ceiling and vertical walls, which help to provide additional floor space. Planning permission is not always required as the conversion can be carried out with permitted development rights and meets certain criteria, the cost is dependent on what the client requests and specification, a standard rear dormer in Manchester costs from £28,000 upwards. With a standard rear dormer loft conversion take on average take four weeks from start to finish.


Hip to Gable & Hip End dormer loft conversions are for properties with a sloping side roof, (hipped roof) which is that the side of your roof slopes inwards towards the chimney. Generally, houses with hip roofs do not tend to not have enough internal volume over the existing stairs to allow your new loft conversion staircase to flow over to have a finished result that the stairs were part of the original build, so a Hip to Gable is constructed to carry the new loft conversion staircase. A Hip-to-Gable or Hip-End style conversion would change the shape of the roof by extending the existing ridge and giving you a much larger loft area. Externally this particular loft conversion is normally finished in hanging tiles as above to match the existing roof colour, a new section of the roof is built to fill in the area of the old hipped roof. The cost for a standard Hip-End or Hip to Gable Dormer in Manchester starts from £26,000. With a side elevation dormer, the loft conversion takes on average around three & half weeks from start to finish.


Cottage Dormer loft conversions are usually situated to the front of a property and are aesthetically pleasing to the eye. Cottage Dormers must be in proportion with your existing roof volume, as once constructed they are an integral part of the overall design of the property if they are built too large the results can look dreadful, as they overpower the rest of the house. The dormer consists of a vertical window with a roof of its own, positioned, at least in part, within the slope of the roof incurring code 5 lead valleys either side. Cottage Dormers are a perfect way to achieve headroom where required. With the dormer to being similar to the Hip-End dormer, the timescale is around the same, again prices start at £26,000.


A Wrap-Around loft conversion is where both a Hip-End or Hip To Gable is constructed with a rear dormer, wrapping around the roof. A Wrap-Around conversion is an innovative design that creates a mass of additional floor volume, this particular conversion is finished with plain hanging tiles to match the existing roof colour. This particular loft conversion is technically more demanding and prices start at £37,000 and take five weeks to construct start to finish.


Any re-roofing necessary in converting the roof must conform with the performance of the original roof in terms of fire resistance, durability and general fitness for purpose. Preservative treatment to roof timbers is not mandatory, but if evidence of the previous infestation of woodworm or previous fungal decay is visible treatment should be undertaken prior to sealing the roof structure.


Yes. We will require coming to your home at a time that is convenient, take a look at your loft space, and take some measurements to consider all your options, and to go through the stair configuration, also this gives you also the opportunity to ask any questions you may have. Once we have the information we require we can then provide you with a bespoke detailed quotation and free cad drawing of your new loft conversion.


Loft conversion quotes are valid for 90 days from the date of issue, this is due to ever-changing prices on the materials. The price we quote is a fixed price and will not change, however, if you would like to amend the speciation then we will provide you with a cost prior to any works starting if you require any additions during construction we will agree a fixed price before any additional work is undertaken.


A free initial consultation with free Cad drawing of your loft.

Fully detailed project specification and quotation.

Design concept.

Fully experienced surveying & structural engineer.

Liaising with the planning office & planning control, to obtain the desired outcome on your behalf. (If applicable)

Project scheduling, coordination, and management on and off-site.

Liaising with building control until the final certificate is issued for all building services.

Rafter Loft Conversions’ aim is to provide all our clients with a loft conversion package in Manchester that represents excellent value for money. As a client of Rafter Loft Conversions, you will benefit from the following services.

Once a free, no-obligation site survey has been undertaken in your home, you will receive a quotation that will have a clear breakdown of costs associated with your loft conversion.  If you decide to choose Rafter Loft Conversions as your contractor, the price will remain fixed. 

Rafter Loft Conversions provide a comprehensive all in one loft conversion package service and oversee every step of the process from the design of your loft conversion, through planning approval if required, through to the end of the construction. It starts with a free no-obligation quotation with an accurate timescale for the project. If you’re happy to proceed, Rafter – Lofts will draw up professional plans, to cater to your exact specifications.

As a client of Rafter Loft Conversions, you will benefit from the attention of a Project Manager, who’s on hand to ensure that the project is built & completed on time, and you’re free to ask any questions that you may have.  

Considering a loft conversion in Manchester call our friendly team today on Freephone 0800 161 3815 for your free bespoke loft conversion quote & Cad drawing. Or fill in our Contact form.

Can I put a bath in my loft conversion?

Sure, the fitting a bath or a shower in your loft conversion will make a more practical and will add more value to your home, you have to take into account the finished headroom of the loft conversion mainly for the shower screen (rear dormer popular for this reason) introducing a bath with mixer taps is a great asset.

The last previous owners put a floor in the loft, will it be OK for the loft conversion without taking it out?

The presence of existing flooring does not ensure that you have a joist system that is substantial enough to support a floor and to have passed with building control, you would have to expose the floor joists, take the dimensions of the beams and the span there are spanning, send dimensions to a structural engineer to calculate the integrity of the joists.

How much weight can I put in my attic?

The joists/chords are what support the weight, an uninhabitable attic will not have been designed for heavy storage, for storage only it should be able to handle around 10 pounds per square foot live load.

Can I convert my loft without building regulations in Manchester?

You can, but what is the point, if you are going to the trouble to convert the attic area, the most important issue is it structurally integrity and safety, if it does not have a building regulations completion certificate, selling your home with an unauthorised loft conversion will prove a serious issue for someone buying your home at a later date, you even may be required have to put it back to the original state prior to creating a room, so for the difference to do it right the first time, out ways trying to do it cheaply.

Can I build a dormer myself?

You can, as long as it is built according to building regulations, the bad news is, it’s defiantly not a DIYer job when Rafter Loft Conversions are contracted to build a dormer (rear, hip to gable or a wrap-around) we guarantee that it is not only built in one day but also watertight if it is considerably a large dormer a couple of teams would be allocated to have the structure built and sealed in a day.

How much weight can you hang from a roof truss?

The bottom chord dead load of a truss varies with the weight of materials attached such as plasterboard on the ceiling, a typical load is 5 to 10 pounds per square foot.

Truss rafters are designed to carry two types of loads which are live loads and dead loads, a live load is a temporary load that creates stress throughout the structure, whilst the dead load is the wind, etc, a dead load is carried constantly by the truss and includes the weight of the structure, i.e. roofing materials, interior materials such as drywall and insulation.

Where are Velux windows made?

Velux head office in the UK was incorporated in 1954 and is based in Glenrothes, Scotland, the company originated in Denmark on the 1st of April 1941 and employ over 10,000 employees worldwide in over 35 countries. The slogan for Velux windows is “BRINGING LIGHT TO LIFE”

What roof cover do you use on a flat roof in Manchester?

For some years now we have used Firestone RubberCover™ (EPDM) Ethylene Polypropylene Diene Monomer as it is one of the most versatile roofing options on the market and considered to be one of the best materials for flat roofs, even though it is only 1.14mm in thickness it consists of two layers of rubber compressed together at heat to give an ultimate watertight blanket. Since the production, RubberCover™ Firestone has produced and installed over 1,000,000,00 m(Billion) around the world and has been installed from freezing temperatures in Alaska to the desert sun in the Arabian Gulf, and it also has a life expectancy of over 50 years. Rafter Loft Conversions are approved contractors for the installation of Firestone RubberCover™

How do macerators work and which are best?

A macerator has a rotating blade that shreds and grinds solids, i.e. human waste and toilet paper, when mixed with flushing water, the solids changes to a fine slurry which moves easily through a narrow pipe which can travel vertical and horizontal to dispose of the waste, Rafter Loft Conversions will only use macerators as the last resort if unable to connect waste the conventional way. The most popular macerator on the market is Saniflow.

Do Velux windows need planning permission in Manchester?

When it comes to inserting roof lights or skylights into your home, be it Velux, Keylite or Fakro generally there is not a requirement to apply for planning permission, this is as long as any windows installed must not protrude any more than 150mm above the existing roof plane. (slope)

Can the existing attic joists support the floor for a loft conversion?

It’s certainty unlikely that the existing ceiling joists will be adequate to support a floor for a loft conversion.

Does a dormer add value in Manchester?

When it comes to adding value to your property, a loft conversion is often the best way to add value to your home, research carried out by Nationwide carried out a survey regarding loft conversions and by adding a bedroom with a loft conversion can add over 20% to a property’s value, investing in a dormer loft conversions you are increasing the actual living space of your home by around a quarter, sometimes more, with having this extra space it makes your property far more appealing to future potential homebuyers.

What size floor joists do I need for a loft conversion?

A good rule of thumb for a floor is half the span, i.e. 2.4m coverts to 8 foot, half of 8 is four + 1 are likely what you require. You must get a structural engineer report to calculate all beams.

What height do you need for a loft conversion in Manchester?

Please see the diagram for the height requirement in a traditional loft and a truss rafter loft.Truss loft conversions

How much does a loft conversion cost in 2020 in Manchester?

Converting your loft into a habitable room is the cheapest way to boost the square footage of your home. The main two loft conversions Velux & rear dormer can vary considerably, Velux loft conversions start at £18,000 and rear dormer conversions start at £27,000, this question is like asking how long is a piece of string as so many factors need to be taken into consideration, i.e. if you would like an additional bathroom.

Which are the best skylights for a loft conversion in Manchester?

Although there are several brands on the market to choose, Velux® remains our favorite and is no doubt the world’s leading manufacturer of roof windows. Velux offers many sizes in roof windows from 470mm x 980mm to a 3 in 1 window 1837mm x 1178mm.

Can I build a dormer without planning permission in Manchester?

If you live in a terraced house your loft conversion must be less than 40 cubic metres, for semi-detached or detached properties no more than 50 cubic metres. Your loft conversion cannot be higher than the highest part of the existing roof profile. The vertical face of the dormer must be at least 20cm from the eaves of the existing roof (internal wall plate) The materials used in your roof extension should match, as much as possible. UPVC will not be acceptable, other than possibly for windows. Loft conversions should be finished in hanging tiles, render or brickwork to match your house and not UPVC, other than windows. If a window is going to be in the check of the dormer, windows within 10.5m of a boundary to the side elevation of a roof slope will need to be obscure-glazed to protect the privacy of your neighbours. A Juliet balcony can be installed but with no platform, any other form of a balcony, roof terrace or veranda requires planning permission. Roof extensions are not permitted in conservation areas, national parks, areas of outstanding natural beauty, or a World Heritage Sites, therefore planning permission must be applied for. If your home is a listed building you should consult with your local planning authority to apply for approval.

Can we have any references before we commit to having a loft conversion?

Yes, gladly.

Can we have input on the design and layout of our loft conversion in Manchester?

Yes, absolutely, Rafter Loft Conversions will listen to your specific requirements and work with you to gain the best possible design of your loft conversion, when we make an appointment we will take dimensions of your home and listen to your requirements, we will enclose a scaled bespoke loft conversion drawing in your quote if there is anything you would like to amend (takes a couple of mins) we will resend it over for you to agree on the design before a deposit is required.

Do I need an emergency exit roof window for fire regulations for a loft conversion in Manchester?

Fire escape windows from the loft room are no longer a requirement for loft conversions when two storey properties are transformed into a three storey, provisions for a fire escape are required throughout the full extent of the escape route, including interlinked mains powered with battery back-up smoke alarms in all habitable rooms and each landing, alternatively, a sprinkler system may be introduced, however, a sprinkler system can be quite costly. Different regulations apply to bungalows, bungalows can have a fire escape window and will still conform to Building Regulations.

Do we have to apply for planning permission to have a dormer window at the front of our house in Manchester, but not if it is built at the back of the house?

Yes, the rear dormer would be built under your permitted development rights (limits apply) as a new regulation came into force on 30th September 2013 which work can be undertaken without having to apply for planning permission, therefore the statement is correct if your property is facing a highway (public right of way, road or public footpath) you would be required to apply to the local planning authority (this may be refused if no other property in the vicinity has similar) yet, under permitted development rights a mistake in the drafting of the legislation was made and specifies limits for side and rear extensions, the intention was to rule out front extensions altogether, however, the wording in the legislation rules out front extensions were the front elevation fronts a public highway, the government did not take into account the scenario when the front of a property does not front a highway, as in the diagram.Permitted development in Manchester

What is the difference between a party wall and a boundary wall?

A party wall is a wall that stands dividing the boundary of land belonging to two or more different owners, if you are an owner of a terraced or semi-detached house contemplating a loft conversion which involves work to the party wall you have certain responsibilities, i.e. notify the neighbour on your intentions, this can be a simple letter sent or handed to the adjoining neighbours, it should state, the date the notice is served, the date work will commence, all parties names and address and a description of works. A boundary wall is a wall constructed on land generally, the wall to separate two parcels of land, a boundary wall will normally run through the centre line of the said wall.

Can we decide on the size of the windows?

Yes, although It is recommended to have a minimum glazed area equivalent to 20% of the floor area, the formula: floor space ÷ 5 = glazing area required.

Can you sleep in a loft room?

You can sleep in a loft room once it has been passed by building control, a converted attic space cannot be called a bedroom merely because it offers enough space to fit a bed, a loft conversion requires to be designed and built in accordance with current building regulations in order to be classed as a habitable room.

Do I need planning permission for Velux windows in Manchester?

Rooflight windows do not require planning permission, unless in certain circumstances, for example: Conservation Area – Area of outstanding beauty – An area specified by the state for the purpose of enhancement, National Park – A World heritage site.

Rafter Loft Conversions built a loft conversion near where we live a couple of years ago, have the prices gone up much since?

Prices will have gone up from a few years ago, but not dramatically, prices will have risen with the rate of inflation. Each loft conversion is priced on numerous factors and depending on the size and scale. If you would like to call 0800 161 3815 we can discuss numerous options.

Once we get a quote is there anything we need to budget for?

Rafter Loft Conversions offer a fixed price promise, you will NOT have any unexpected charges. What is not included in our quotes are: The Building Inspectors Fee £600,00. If planning permission is required, the planning fee £206,00, or an additional £103,00. if you would like to apply for a Certificate of Lawfulness. A Certificate of Lawfulness for a loft conversion is issued by your local planning authority, in short, it confirms that the existing development and proposed development is lawful for planning purposes.

We do not get on with our neighbours, can they stop us from getting a loft conversion?

Neighbours cannot stop you from having a loft conversion, but they are certainly in their rights to instruct & appoint a Party Wall Surveyor to look after their interests if they do choose this route YOU will be liable for their chosen Surveyor, and YOU will have to appoint a Surveyor to have reports on your side of the Party wall. (Rafter Loft Conversions have carried out hundreds of loft conversions throughout the North West and only once a client had to deal with a Surveyor, it is only required if your neighbours are hostile)

Can a wooden floor be fitted in a loft conversion or will it be too noisy?

If you are meaning a laminated or solid oak flooring, of course, there is not only thermal insulation but also acoustic insulation in between your new loft conversion floor and first-floor ceiling, therefore it should not be any noisier than carpet.

How much should a loft conversion cost in Manchester?

The two most popular loft conversions are Velux loft conversions which start at £18,000, and the rear dormer conversion start at £27,000, this all depends on the size and the complexity of the build, if you would like to have a chat regarding any type of loft conversion give our office a call on 0800 161 3815 and we will be able to advise you on the best option to suit you and your home.

Where can you put stairs in a Manchester loft conversion?

We cannot say until we have undertaken a viewing on your property, they are many numerous factors to take into account with a new staircase. Building Regulations stipulate minimum headroom not only on the new staircase but also if they are going to be positioned above your existing staircase we need to make sure we have 2m headroom clearance walking down the existing stairs. A good explanation of staircases can be found HERE.

We still have a water tank in the attic, would it be a problem?

Rafter Loft Conversion can easily reposition any plumbing pipes or tanks to maximise usable space in the loft. We would suggest rather than spend a few hundred pounds to have a water tank moved, nowadays its worth considering a combi boiler which are now really efficient, and depending on how lower the tanks may have to be moved you may also lose pressure due to it being gravity fed.

If we have a loft conversion, do I need to arrange Building Regulations Approval?

No, Rafter Loft Conversions offer an all in one package, plans through to completion, we deal with all the relevant bodies until you receive your completion certificate.

You recently have done a loft conversion on our neighbours but will we need planning permission if we want a dormer loft conversion?

The majority of dormer loft conversions, do not require planning permission nearly every home has what is called “Permitted Development Rights” generally loft conversions come under your building rights, although every loft conversion with no exceptions must go through Building Control. HERE are some loopholes regarding permitted development. If you would like to give us a ring, we can explain your Permitted Development Rights in more detail. 0800 161 3815.

Can I do some of the work myself to reduce the cost of the loft conversion?

Of course, we can provide you with a structure only service, plan submission, floor, upgrade of the roof, windows and staircase, which would leave you electrics, plumbing, partitions, plaster boarding, and plastering, we have only recently done two-part builds, in Tyldesley and Rochdale.

If we choose to proceed with our loft conversion in Manchester should we inform the neighbours?

As you are in a terraced house it is good manners to keep both your immediate neighbours informed of your intentions or if they choose they can stop the build by insisting on a Party Wall Agreement which would delay your conversion for around six weeks.

We are considering a dormer conversion on our terraced house, how long would it take?

Generally, a dormer conversion is usually around four weeks from start to finish, we have recently undertaken an L-shaped dormer a couple of roads away, Moreton Ave and a Wrap-Around dormer conversion in Poplar Road, Stretford.

Can you do loft conversions in the new modern roof in Manchester?

Yes, we undertake loft conversion in both Traditional and Trussed roofs, Truss loft conversions are slightly more demanding but no problem whatsoever, if you would like to call we can discuss which option you would prefer and give you a guide price.

I have only around 6 foot headroom in the attic, what is the minimum headroom I need?

For a Velux loft conversion, the minimum headroom required is 2.2m if you require a dormer conversion a minimum of 2.4m is required, your only alternative is to lower the ceilings on the first floor or take your roof off completely and put a steeper pitched roof on your home, the roof lift can only be achieved on a detached house and in certain circumstances in a semi-detached if the neighbouring property is stepped down from your home, as planning permission and the consideration of aesthetics will be applied.

Would we need to instruct an architect to draw the loft conversion plans?

Rafter Loft Conversions will design your loft conversion and enclose it on your loft conversion quote for your approval, if you are happy to proceed with your proposal we take care of the plans if you would like a PLAN service only for you to acquire some quotes our charges are as follows:

Velux/Rooflight prices only £895.00 Incl. including calculations.

Dormer loft conversion plans £995.00 Incl. including calculations.

Elevation drawings (Planning) prices start from £1,495.00 Incl. calculations.

How much disruption is there when a loft conversion is undertaken in Manchester?

You will be glad to know not much really, generally in the last week of your loft conversion when it’s time to fit the new staircase there is a bit of disruption on the landing, but only for a few days, after each day the area will be cleaned and left safe.

How much does it cost to convert a loft into a bedroom in Manchester?

The two most popular loft conversions are Velux loft conversions which start at £18,000, and the rear dormer conversion start at £27,000, this may vary depending upon the design / size and the complexity of the build.

What is a Velux loft conversion?

Velux® and Rooflight loft conversions are the same, this particular loft conversion is called a Velux conversion due to the popular roof window manufacturer Velux. A Velux loft conversion is when your loft conversion is within your existing roof space and without altering the profile of your roof. Velux conversions are the cheapest option and work’s well when you have good existing headroom to maximise the space available. Velux loft conversions require considerably less construction work and the installation of Velux® windows is a fantastic way of making your loft space feel spacious by allowing natural light and air.

Can you do a loft conversion on a semi-detached house in Manchester?

Of course, the simplest and most cost-effective loft conversion for a semi-detached house is a Velux conversion as long it’s a gable end, if you have a hipped roof (where the roof slope’s to the chimney) you would no doubt need a Hip-End dormer, a rear dormer can be introduced at the same time, Wrap-Around dormer. HERE are the different loft conversions.

What regulations are involved in a loft conversion in Manchester?

We have to take in numerous factors for a loft conversion it involves the structural integrity of the new floor and ceiling, structural stability of the existing roof and changes made to party walls, the suitability of any proposed changes to the exterior of the house, in the context of the local area and any special factors relating to the property, safety in the event of fire regarding the escape route, appropriate stairway access, soundproofing between the proposed space and adjoining areas, such as rooms below or through party walls etc.

How long will a loft conversion take to complete in Manchester?

The actual construction of a typical conversion takes between 3 weeks for Velux conversions and 4 weeks for a dormer conversion, allow an extra few days if a bathroom is going to be installed. If planning permission is required for the loft conversion you should allow a further 8 weeks for it to go through a planning meeting, however, generally, loft conversion comes under your permitted development rights.

Contact our friendly team on 0161 885 3152, or alternatively fill in our contact form below.



Rafter Loft Conversions makes all reasonable efforts to ensure that the information contained on the website is accurate at the time of their creation and/or modification. However, we cannot guarantee the completeness or accuracy of the information contained on the website page, and shall not be responsible for any errors, omissions, or inaccuracies and accepts no liability whatsoever for any loss or damage howsoever arising. Rafter Loft Conversions reserves the right to make changes, or take down the website page or remove or alter any content at any time without notice.

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