Loft Conversion Builders in Fulham (SW6)
Professional loft conversion builders in Fulham, South West London.
Why Choose All Well for Loft Conversions in Fulham?
Fulham's Victorian terraces have good roof structures for loft conversions, which is why SW6 sees so many of them. We build L-shaped dormers on the larger terraces that create a genuine master suite, bedroom, en-suite, and dressing area, that rivals the best rooms in the house.
Every project comes with a fixed-price contract, single project manager, and full certification including Building Control sign-off.
Loft Conversions for Fulham Properties
Fulham is known for its victorian terraces, edwardian mansion flats, riverside developments. Our loft conversions services are tailored to these property types, ensuring results that complement the character of your home.
Postcodes we cover: SW6
Loft Conversions Tip for Fulham Homeowners
The conservation areas in Fulham restrict dormer design more than in some other boroughs. Hammersmith and Fulham Council expects dormers to be subordinate to the existing roof, clad in materials that match the original covering, and set well back from the front elevation. We work within these constraints to maximise internal space without triggering a planning refusal. For non-conservation properties, permitted development rules provide more flexibility on dormer size and materials.
Types of loft conversion we build on Fulham's Victorian terraces
Three patterns cover most of what we build in SW6. The housing stock, steep cut-roof Victorian terraces, wider properties with back additions, and Edwardian mansion blocks, dictates which type is achievable before we even visit. Note on mansion blocks: top-floor flats near Fulham Broadway and along Fulham Road usually cannot have a loft conversion. The roof structure is shared building fabric, the lease typically prohibits structural roof alterations, and the freeholder rarely consents. We confirm at the survey and clarify scope rather than quoting work that can't be delivered.
L-shaped and rear dormers on SW6 terraced houses
L-shaped dormer on a wider Victorian terrace is the most common Fulham project. The terraces along Munster Road, Bishops Road, and the streets towards Bishops Park have steep cut-roof pitches and reasonable back-addition footprints. Combining a rear dormer with a side dormer over the back addition creates 25–32 square metres of usable floor space, typically a master suite with bedroom, en-suite, and dressing area. Build time is 12–14 weeks. The party wall mechanics involve both neighbours because the side dormer crosses the party wall. Rear dormer on a narrower Victorian terrace near Fulham Broadway and the streets towards Parsons Green creates a master bedroom with en-suite within the existing roofline. Build time is 10–12 weeks. The 40 cubic metre Class B terraced allowance applies under permitted development. Mansard conversion is used where rear dormers are restricted. The existing roof structure is largely rebuilt with a near-vertical rear slope and a small flat roof at the top. Mansards always need full planning because they change the roof profile. Build time is 16–20 weeks including consent.
Planning and dormer design rules for loft conversions in Hammersmith and Fulham conservation areas
Conservation area coverage, specific dormer design requirements, and the mansion-block lease position all need resolving before a design is fixed. Hammersmith and Fulham Council has more residential conservation area coverage than most West London boroughs, and its design guidance is more prescriptive on dormer subordination.
How Hammersmith and Fulham conservation areas affect dormer approval
Hammersmith and Fulham Council has extensive conservation areas across Fulham, Fulham Park Gardens, Studdridge Street, Hurlingham, Munster Road, and Bishops Park among others. Within all of these, dormer designs need conservation officer review. The council expects dormers to be subordinate to the existing roof, clad in materials that match the original covering (typically slate on Victorian terraces), and set well back from the front elevation. Front-facing dormers are virtually never approved. Within conservation areas, rear dormers must sit well below the existing ridge, typically 500mm or more, stricter than the standard 300mm, set back from the eaves by 300mm or more, and not exceed 60–70 per cent of the rear roof slope width. Materials must match the existing: Welsh slate is common, with lead flashing throughout. Side-facing dormer windows to habitable rooms must be obscure-glazed and fixed shut up to 1.7 metres above floor level under the General Permitted Development Order. Our submitted designs typically get approved without revisions because we work within the published parameters rather than pushing the limits.
Mansion-block flats in Fulham: what's achievable and what isn't
The Edwardian mansion blocks near Fulham Broadway and along Fulham Road have shared roof structures and leasehold arrangements that typically prohibit loft conversion. Even where the lease permits structural alteration, Section 20 freeholder consent and a Licence to Alter would be required, and freeholders rarely approve loft conversions because they affect the building's shared roof and weather envelope. For top-floor mansion-block flats, achievable scope is usually limited to skylight upgrades or a roof terrace under separate planning consent. We clarify this at the survey rather than quoting work that can't be delivered through to handover.
Hammersmith and Fulham loft conversion consents and project management in SW6
Every Fulham project runs through the same consent, trade sequence, and contract structure. The specifics, permitted development or full planning, conservation area or not, terraced or wider mid-terrace, change the programme but not the process.
Consent process and programme for Fulham loft conversions
Fulham falls under Hammersmith and Fulham Council. Permitted development under Class B covers loft conversions on non-conservation properties within volume limits: 40 cubic metres for terraced and 50 cubic metres for semi-detached or detached. We submit a Lawful Development Certificate (£129, 6–8 weeks at Hammersmith and Fulham) on permitted development projects. For conservation area projects, full planning applies and the council typically determines applications in 8–12 weeks. Mansards always need full planning because the roof profile changes. Fixed-price contracts cover labour, materials, structural engineer calculations, Building Control fees, FENSA glazing registration, party wall surveyor coordination (typically two neighbours on Fulham mid-terraces), conservation area or full planning where applicable, FD30 escape route door upgrades, slate and lead flashing matching, and the Lawful Development Certificate or planning application. The fixed price is confirmed after a free site visit.
Trade sequence, fire safety, and project management for a Fulham loft
A Fulham loft conversion involves 9–13 trades over 10–20 weeks (longer for mansards): structural steel install, joist and floor structure, dormer or mansard carcassing, brick build-up matched to existing London stock, slate roofing with lead flashing matched to the existing covering, Velux rooflights and FENSA-registered casement windows, insulation to U-value 0.18 W/m²K under Building Regulations Part L, staircase joinery, plastering, NICEIC electrics, en-suite plumbing, and decoration. Fire safety follows Building Regulations Part B, protected escape route with FD30 fire doors on every habitable room along the route to the front door, mains-wired interlinked smoke alarms on every floor, and 30-minute fire-resistant floor construction. Original ground-floor doors typically need upgrading to FD30 standard. Stair design follows Part K: 2 metres minimum headroom, 42 degree maximum pitch. We assign one project manager from survey through handover with photo updates throughout.
Loft Conversions in Fulham: What's Included
How I price loft conversions in Fulham
I price every loft conversions job in Fulhamafter I’ve seen it. No two properties are the same, so a number here would only mislead you. What you get instead is a fixed-price contract, a week-by-week programme, and no costs that turn up later.
Get a fixed quoteWhat Our Customers Say
“All Well managed our project from start to finish. The fixed-price contract meant no surprises, and the result is stunning.”
Verified Customer
Fulham
“Professional team, clear communication throughout. They handled everything including Building Control sign-off.”
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Fulham
Frequently Asked Questions
- What type of loft conversion suits a Fulham Victorian terrace?
- It depends on the width of your terrace and the back addition. On a wider Victorian terrace, the most common Fulham project, an L-shaped dormer combining a rear dormer with a side dormer over the back addition gives the most usable space, typically a master suite with bedroom, en-suite, and dressing area. On a narrower terrace near Fulham Broadway or Parsons Green, a rear dormer within the existing roofline creates a master bedroom with en-suite. Where rear dormers are restricted, a mansard rebuilds the roof structure with a near-vertical rear slope. Conservation area properties need stricter material matching, Welsh slate and lead flashing, and tighter design parameters. We confirm a fixed-price contract after a free site visit, before any work starts.
- Why do Fulham conservation areas restrict dormers more than some other boroughs?
- Because Hammersmith and Fulham Council has more residential conservation area coverage than most West London boroughs and the council's design guidance is more prescriptive on dormer subordination. Within conservation areas, rear dormers must sit well below the existing ridge (typically 500mm or more, stricter than the standard 300mm), set back from the eaves by 300mm or more, and not exceed 60-70 percent of the rear roof slope width. Materials must match the existing, Welsh slate is common, with lead flashing throughout. Front-facing dormers are virtually never approved. The published design guidance is one of the clearest in London and our submitted designs typically get approved without revisions because we don't push the limits. For non-conservation properties, standard permitted development rules apply with more flexibility on dormer size and materials.
- Can I do a loft conversion on my Fulham mansion-block flat?
- Almost never. The Edwardian mansion blocks near Fulham Broadway and along Fulham Road have shared roof structures and leasehold structures that typically prohibit loft conversion. Even where the lease permits structural alteration, Section 20 freeholder consent and Licence to Alter would be required, and freeholders rarely approve loft conversions because they affect the building's shared roof and weather envelope. For top-floor mansion-block flats, the achievable scope is usually limited to skylight upgrades or, under separate planning consent and Licence to Alter, a roof terrace. A habitable loft conversion is rarely possible. We clarify scope at the survey rather than quoting work that can't be delivered through to handover.
- Why hire All Well for a Fulham loft conversion?
- Three reasons. First, accuracy: we know the SW6 stock, narrow Victorian terraces, the extensive Hammersmith and Fulham conservation areas, the dormer design rules tighter than most boroughs, and the mansion-block lease constraints. Second, full accreditation: NICEIC for electrical (BS 7671), FENSA for glazing, Gas Safe registered for boiler relocation, structural engineer calculations, and Building Control sign-off included on every project. Third, fixed-price contracts: the quote doesn't change unless the specification does, including conservation area applications, slate and lead flashing matching, mansard structural redesign, and party wall surveyor fees. Office on Limes Avenue, SE20.
All Well has completed 100+ projects across 25 London boroughs since 2020. We are NICEIC approved for electrical work, FENSA registered for glazing, and CHAS certified for site safety, with Public Liability insurance to £5 million. 57+ Google reviews average 4.5 stars. All Well Property Services® is a UK registered trademark, Companies House no. 12721034, operating from Unit 1 Limes Avenue, Anerley SE20 8QR.
Loft Conversions Near Fulham
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