★★★★★
I have worked with James and his team for many years. The works are always done to an impeccable standard and the communication throughout is perfect. Would definitely recommend.
loft conversion in Bath
Loft Conversions Bath
Velux, dormer, hip-to-gable, and mansard loft conversions across Bath (BA1 and BA2) and the surrounding villages. Full project management from structural design to final decoration.
- 22 years in the trade
- MCIOB chartered
- £10M+ public liability
- Written workmanship guarantee
A Bath loft conversion turns dead roof space into a bedroom, bathroom or office without surrendering garden — the practical answer to Bath terraces and semis where extending outward is blocked by conservation rules. We design the structure, install the steel, and hand you finished, decorated rooms with Building Control sign-off. Velux from 4–6 weeks; mansards from 10–14.
What We Do
The loft conversion work we take on across Bath — every project, every property type.
Velux loft conversions (rooflight-only)
Dormer loft conversions (rear or side dormer)
Hip-to-gable loft conversions
Mansard loft conversions
L-shaped dormer loft conversions
Loft conversions with en-suite bathrooms
Loft conversions with dormer balconies
Listed-building loft conversions (conservation-officer liaison)
Recent work
Loft conversion we have done
Real jobs, photographed as we finished them. No stock photography.
Signs you need loft conversion
If any of these sound like your property, it's worth booking a free site visit.
Head-height disappointment — we assess the real usable height before you commit
Party wall notices ignored — we handle the notices and surveyor process
Lofts that fail fire regs — escape windows, protected stairs and alarms are in the spec
Under-specified steel — structural calcs and Building Control are part of the quote
Bath conservation areas treated as an afterthought — we brief the conservation officer where needed
Floor joists slapped over existing ceilings — proper load-bearing design every time
Why Choose Loft Conversions
We've completed hundreds of loft conversion projects across Bath. Here's what makes them last.
Velux £18,000–£28,000; dormer £35,000–£55,000; hip-to-gable £40,000–£65,000; mansard £50,000–£80,000+ (measured Bath ranges)
4–6 weeks for a Velux to 10–14 for a mansard — timeline fixed at quote
Full structural design with steel calcs included
Building Control sign-off and certificates handed over at completion
En-suite and dormer-balcony options built into the same contract
Listed-building loft conversions with conservation-officer liaison
One project manager from first drawing to final coat of paint
Our Process
Every loft conversion project follows the same 8-12 step process. Here's what to expect from your free site visit to your 12-month aftercare check.
01Free site visit & consultation
James visits your the conversion property to scope the work, discuss options, and assess constraints — listed status, party walls, ground conditions. No charge, no obligation.
02Fixed-price itemised quote
You receive a fully itemised quote — materials, labour, waste removal, sign-off fees all broken down. What we quote is what you pay.
03Scheduling & preparation
We agree start dates and working hours, order materials, arrange skips and scaffolding where needed, and protect your home with dust sheets and floor coverings.
04your loft works begin
The crew carries out the work to the agreed spec. Daily tidy-ups and protected access routes — your home stays liveable.
05Structural & building control sign-off
Where the work is structural, Building Control inspects at the required stages and you receive full certification on completion.
06Quality check with James
James walks the finished work with you. Any snags are dealt with immediately — we only sign off when you are fully satisfied.
07Handover & documentation
You get certificates, warranties and any FENSA/Building Control paperwork, plus guidance on caring for the new work.
08Aftercare
If anything needs attention later, we come back. Our reputation in Bath is built on long-term relationships, not one-off jobs.
Recent loft conversion work
A real job we've completed — the brief, the challenge, how it ran, and the photographs from site.
loft conversion Reviews
Verified customer reviews from our loft conversion installations across Bath.
★★★★★
We had Aspect Builds build an extension for us and we are absolutely delighted with the finished result. From start to finish the team were professional, reliable and a pleasure to have on site. The quality of the build is excellent, everything was kept tidy, and they kept us fully informed throughout. Great communication, fair pricing and a first-class finish. We wouldn't hesitate to recommend Aspect Builds to anyone considering an extension or any other building work.
★★★★★
Older property, kitchen with apex ceiling. Very pleased with the professional finish, friendly team. I was asked before painting commenced what I would like. All surfaces fully protected and covered, no mess left. Impressed with the high standard. Kitchen looks exactly how I wanted it to look with the desired finish.
Frequently Asked Questions
Everything you need to know about our loft conversion service.
How much does a loft conversion cost in Bath?
Costs vary widely depending on the type of conversion (Velux, dormer, hip-to-gable, mansard), size, structural work, and finish level. We give you a fixed-price quote after a free site visit, so you know the exact cost before any work starts. No day rates, no open-ended estimates.
How long does a loft conversion take in Bath?
Velux conversion: 4-6 weeks. Dormer conversion: 6-10 weeks. Hip-to-gable: 8-12 weeks. Mansard: 10-14 weeks. We provide a detailed programme at quote stage and stick to it.
Do I need planning permission for a loft conversion in Bath?
Most Velux conversions fall under Permitted Development. Dormer and hip-to-gable usually need planning permission, especially in Bath's conservation area. We check and handle the full application if needed — typically 8 weeks lead time.
Can you do hip-to-gable loft conversions in Bath?
Yes — hip-to-gable is a core part of our loft conversion work. We work on semi-detached and detached houses across Bath. Structural calculations, building regulations, party wall agreements — all managed in-house.
Can you build a dormer loft conversion in Bath?
Yes — rear dormers, side dormers, and L-shaped dormers are all part of our work. We handle the structural work, the dormer construction, the windows, and the internal fit-out.
Can you do a loft conversion on a listed building in Bath?
Yes — heritage and listed-building loft conversions are part of our work. Conservation-officer liaison, traditional materials, sympathetic detailing. Work that respects the building's heritage and meets Bath conservation requirements.
Will I be able to live in my home during the loft conversion?
Yes — most loft conversions are done with the home occupied. We isolate the work area, dust-sheet, clean daily, and respect your space. Typical disruption is 4-6 weeks of noise and dust during the structural phase.
Are you insured and qualified to do loft conversion work in Bath?
£10M+ public liability (AXA-verified). CSCS cardholders, City & Guilds / NVQ qualified. James is MCIOB chartered through the Chartered Institute of Building. All documentation on request.
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Worth reading first
- Loft Conversion Cost in Bath: 2026 GuideRealistic loft conversion costs in Bath — Velux, dormer and hip-to-gable prices, what drives the final quote, and what to watch for when comparing builders.
- Velux vs Dormer Loft Conversion in Bath: Which Is Right for Your A practical comparison of Velux and dormer loft conversions for Bath homes — covering cost, head height, planning rules in conservation areas, and which suits p
Property in Bath? See loft conversion in Bath, where most of the work is Georgian and lime-compatible.
Loft Conversions Across Bath & BANES
All 28 Bath & BANES areas — Bath city neighbourhoods and the wider market towns we cover.
Bath City12 areas
Bath Surrounding Villages6 areas
West Wiltshire6 areas
Somer Valley4 areas
Free site visits across Bath & BANES. Properties outside our standard coverage area can be quoted by arrangement. Listed building consent, conservation area consent and Building Control notification are handled on your behalf where required.
