Rooflight / Velux
Uses the existing roof shape and adds roof windows. It can be the simplest route where the loft already has enough height and usable floor area.
Liverpool · Wirral · Chester · North West
Need another bedroom? Look up, not out.
Transform the space above your home into an extra bedroom, an en-suite or a peaceful office — without the stress and expense of moving.
2026 INDEPENDENT UK MARKET GUIDE
From £22,500*
For a straightforward rooflight conversion in a suitable property. Not a Loft King fixed quote.
We work with a specialist loft conversion contractor. Start with a free suitability review to discuss your options, potential staircase and roof space, then agree a survey and technical next steps.
- 01 Free initial suitability review and survey options
- 02 Specialist support for rooflight, dormer and more
- 03 Clear scope before structural work begins
*£22,500 is the low end of Checkatrade's 2026 national rooflight-conversion estimates; it is not a Loft King contractor offer. VAT, professional fees and final costs depend on the specification. See costs and source.
Get your free loft suitability review
Leave your name, postcode and telephone number. We’ll discuss the room you want and arrange a survey where appropriate.
Your enquiry is with Loft King.
The team will call to discuss your loft-conversion plans and the next step. Your survey appointment is not booked yet.
Your reference:
Need to speak sooner? Call 0333 041 3834.
Free initial reviewSurvey arranged where appropriate.
Specialist contractorInvolved when technical assessment is needed.
Building Regs routeHabitable-space requirements considered from day one.
North West coverageLiverpool, Wirral, Chester and surrounding areas.
✓ Suitability first, quote second
✓ Habitable-room conversion
✓ Building Regulations considered from the start
Make the most of your existing survey
What will we check for a loft conversion?
Already arranging a Loft King survey for boarding or insulation? Ask our team to include an initial loft conversion suitability discussion at the same visit. If the space looks promising, we can arrange a more detailed review with our specialist conversion contractor.
Ask about a conversion assessmentInitial observations are provisional and do not replace measured drawings, structural assessment, planning advice or a specialist quotation.
- Roof height and shapeLook at existing space, roof pitch and potential headroom.
- Staircase accessDiscuss possible locations for a permanent staircase.
- How you would use the roomBedroom, en-suite or office — and the space each may need.
- Roof structure and servicesIdentify questions for the specialist about support, insulation, plumbing and electrics.
- Likely next stepsExplain the potential need for design, planning and Building Regulations approval before any build quote.
Choose the design that suits the roof
Four common ways to
unlock the loft.
The right conversion is driven by the house you already have. Roof shape, usable headroom, staircase position and the room you want matter more than choosing a style from a catalogue.
Rear dormer
Builds out from a roof slope to create additional headroom and more full-height floor space. A common option for terraces and semis.
Hip-to-gable
Changes a sloping hipped end into a vertical gable on suitable semi-detached or detached homes, often combined with a rear dormer.
Mansard / complex roof
A more extensive roof alteration that can create substantial usable space but normally needs more design, structural work and planning consideration.
Illustrative photography only. These images show design possibilities and are not presented as completed Loft King projects.
Not sure which one you need?
That is exactly what the feasibility stage is for. You do not need drawings or measurements before contacting us.
Start with my postcodeDesign around the life you want upstairs
Another bedroom.
An en-suite. A place to work.
A loft conversion is not simply “boarding with walls”. It changes structure, access, fire safety, insulation and services so the new floor can be used as habitable space.
We therefore start with the whole layout: where the staircase arrives, how much full-height space is available, where windows can go and how plumbing, heating and electrics will reach the new room.
- Master bedroom + en-suiteA popular way to create a private top floor without extending into the garden.
- Extra family bedroomUseful when the house works well but the bedroom count no longer does.
- Office or studioCreate a quieter, separated workspace that still remains part of the home.
- Guest or teenager spaceMake use of the roof volume while keeping living areas below unchanged.
See the potential
From unused roof space
to somewhere you actually live.
A conversion is a structural project, but the reason people do it is simple: to gain useful living space without leaving the home they already like.
Illustrative comparison using different properties. Your own conversion will depend on roof form, structure, approvals and specification.
2026 price guide · North West homeowners
How much should you budget?
Market pricing varies by house, roof structure and finishing specification. These are independent UK budget ranges, not Loft King fixed offers.
Rooflight / Velux
£22,500–£30,000Retains the roof profile where there is already enough headroom.
Assess my loft →Rear dormer
£40,000–£60,000A roof extension can create more full-height space for an extra room.
Explore my options →Hip-to-gable
£50,000–£70,000Can unlock more space in suitable semis and detached homes.
Explore my options →Mansard
£50,000–£80,000More extensive roof work, subject to design and approvals.
Explore my options →Price sources and limitations: UK 2026 market benchmarks published by Checkatrade and MyBuilder. The £22,500 headline is the low end of Checkatrade's rooflight range, not a verified Loft King contractor starting price. Before comparing prices, check VAT, structural engineering, drawings, planning and Building Control costs, scaffolding, structural work, stairs, electrics, bathrooms and finishes. All are subject to your specification.
What would YOUR conversion cost?
Tell us what room you want. We'll check survey availability, then involve the conversion specialist for a detailed quotation where appropriate.
Request a free loft suitability reviewApprovals matter
Planning permission and Building Regulations are not the same thing.
Planning / Permitted Development
In England, many house loft conversions can be completed under Permitted Development where all relevant limits and conditions are met. For roof enlargements, the volume allowance is generally up to 40m³ for terraced houses and 50m³ for detached and semi-detached houses, including previous roof additions.
Other restrictions cover matters such as overall roof height, the principal elevation, materials, side-facing windows and the position of roof enlargements relative to the eaves. Conservation areas, listed buildings and properties with restricted Permitted Development rights need particular care.
Building Regulations
A habitable loft conversion requires Building Regulations approval. The design may need to address the new structural floor and steelwork, fire-resisting construction and escape route, stairs and headroom, thermal insulation, ventilation, glazing, electrics and any bathroom or heating work.
On attached homes, Party Wall procedures can also apply where structural work affects a party wall. That is a separate legal process from both planning permission and Building Regulations.
Planning guidance above relates to England and is a general introduction, not a determination for an individual property. Local restrictions and Welsh planning rules differ.
Is your loft suitable?
Five things we want to understand first.
You do not need to solve these yourself. They simply explain why a survey is more useful than a price based on floor area alone.
- Roof height and pitchMore existing headroom generally gives the designer more options; lower roofs may need a more structural solution.
- Roof structureTraditional rafters and modern trussed roofs behave differently and can require different structural designs.
- Staircase positionA good loft room still needs a safe, practical staircase that works with the floor below.
- Desired layoutBedroom, bathroom, office and storage requirements influence windows, services and the shape of the conversion.
- Property constraintsPlanning history, conservation status, party walls, access and existing alterations all affect the route forward.
From idea to buildable scope
A clear route before anyone opens the roof.
1. Feasibility call
We discuss your property, postcode, what you want from the space and whether a survey is the right next step.
2. Property survey
We review roof form, headroom, access, staircase options and the likely conversion type.
3. Design & approvals route
The project is scoped around planning or Permitted Development, structural design and Building Regulations requirements.
4. Written scope & quotation
The work, inclusions, exclusions and proposed programme are set out before you commit to construction.
5. Build & sign-off
Structural work, roof alterations, services and finishes proceed to the agreed specification, with the required inspections and completion process.
Storage or habitable room?
Use the right service for the result you want.
If you only need safe, accessible storage, a full conversion may be unnecessary. Loft King already offers raised boarding, insulation, ladders, hatches and lighting as a separate, lower-cost service.
If you want a bedroom, office, bathroom or other habitable room, use the loft-conversion route so the structural, access and Building Regulations requirements are considered properly.
Explore loft boarding & storageLocal conversion enquiries
Liverpool, Wirral, Chester and surrounding areas.
We accept enquiries across Merseyside, Cheshire and surrounding North West locations, including Southport, Ormskirk, Frodsham, Warrington and selected Greater Manchester postcodes.
Before you decide
Your loft-conversion questions.
How much does a loft conversion cost in Liverpool and the North West?
Independent 2026 UK market guides indicate rooflight conversions around £22,500–£30,000, rear dormers around £40,000–£60,000, hip-to-gable around £50,000–£70,000 and mansards around £50,000–£80,000. These are market estimates, not Loft King prices, and published costs can differ in VAT treatment, professional fees and inclusions. A tailored quote follows specialist assessment.
Do I need planning permission for a loft conversion?
Not always. In England many house loft conversions can fall within Permitted Development where the relevant limits and conditions are met. Roof enlargements are generally limited to 40m³ on terraced houses and 50m³ on detached and semi-detached houses, with other design restrictions. Planning permission may still be required where Permitted Development rights do not apply or the proposal exceeds the limits.
Do loft conversions need Building Regulations approval?
Yes. Building Regulations approval is required when a loft is converted into habitable space. The design can involve structure, fire safety, stairs, insulation, ventilation, glazing, electrics and plumbing.
What is the difference between loft boarding and a loft conversion?
Raised loft boarding creates non-habitable storage space. A loft conversion creates a habitable room and requires a substantially different structural, fire-safety, access and Building Regulations design. Loft King keeps the two services separate so a storage enquiry is not presented as a habitable-room solution.
Which type of loft conversion is right for my house?
That depends on roof shape, existing headroom, structure, staircase position, desired room layout and planning constraints. Rooflight conversions keep the existing roof profile, rear dormers add headroom, hip-to-gable conversions can unlock space on suitable semi-detached or detached homes, and mansards involve a more extensive roof alteration.
Can I add an en-suite?
Often, subject to available space, drainage routes, water supply, ventilation and the structural design. It is best to consider the en-suite at the same time as the bedroom and staircase so the layout works as one project.
How long does a loft conversion take?
The programme depends on conversion type, design, approvals, structural work, weather and finish. Straightforward projects can take a number of weeks, while larger hip-to-gable, mansard or multi-room projects take longer. Your written scope should set out the expected build programme before work starts.
Will I need a Party Wall notice?
It can apply on attached homes where the work affects a party wall or party structure, for example where structural beams are inserted into a party wall. Party Wall requirements are separate from planning permission and Building Regulations.
Can every loft be converted?
No. Roof height, pitch, truss arrangement, staircase space, structure and planning constraints can all affect feasibility. Lower or more complex roofs are not automatically impossible, but they may need a more involved design.
Do you cover Liverpool, Wirral and Chester?
We accept loft-conversion enquiries across Liverpool, Wirral, Chester, Merseyside, Cheshire and surrounding North West areas. Share your full postcode so the team can confirm survey availability.
What is included in the free conversion assessment?
We start with a phone conversation about the property and the room you want. Where an existing survey is already arranged, we can also discuss basic roof space, headroom, potential staircase access, room layout and questions for our specialist contractor. A formal structural feasibility review, planning advice and final build price need further assessment.
Interior photography: Lisa Anna, Kirsten Miles, Agathe and Alex Tyson via Unsplash.
Independent guidance: Planning Portal loft-conversion guide, Approved Document B — fire safety and GOV.UK Party Wall guidance.
The space is already there
Find out whether it can become
the room your home is missing.
Start with a free feasibility call. We’ll discuss the property, what you want to create and the right next step before any commitment.
Prefer to talk now? 0333 041 3834