GS Renovation builds loft conversions across Hammersmith and Fulham, on the Victorian and Edwardian terraces of W6, W12, W14 and SW6. Whole houses convert well here; period conversion flats usually do not. We say which yours is at the survey, then handle the engineer, the steel and Hammersmith and Fulham Council building control.
Terraced houses in W6, W12, W14 and SW6
The borough's standard house is a two-storey bay-fronted terrace with a rear closet wing, and the L-shaped dormer wrapping the main rear slope into that wing is the type returning the most usable space. Head height gets checked first, ceiling joists to ridge, with 2.2m to 2.4m the working minimum. Fulham's smaller cottage-scale terraces near Bishops Park sometimes fall short and need the ceilings below dropped, which is worth knowing before anyone settles on a layout.
Conservation areas cover a great deal of Hammersmith and Fulham, and inside them permitted development for lofts is removed. A mansard is frequently the form officers will discuss on a terrace where a box dormer would be refused, rebuilding the rear slope at a steep pitch and delivering the most volume of any type, at roughly £70,000 to £100,000 or more as an indicative London range for 2026. An L-shaped dormer outside a conservation area runs roughly £55,000 to £80,000.
Conversion flats, party walls and building control
A large share of the borough's period houses were split into flats decades ago, and if you own the top-floor flat the roof space above you almost certainly belongs to the freeholder. Converting it means buying or licensing that space, varying the lease and satisfying the freeholder's insurers, and in most buildings that is where the idea stops. We say so honestly rather than run up fees on a scheme the lease does not permit in the first place.
For whole houses the route is well trodden. Steel beams span between party walls to carry the new floor and the dormer, sized by the engineer and bearing onto padstones. Cutting into a party wall is notifiable under the Party Wall etc. Act 1996 and the notice is served by you as building owner. Hammersmith and Fulham Council building control then inspects Part B fire safety with a protected stair to a final exit, the Part K stair, the structure and the insulation before anything is closed up.
- L-shaped dormers over a rear closet wing
- Rear dormers to win full head height across the new floor
- Trussed roofs redesigned before any web is cut
- Hip to gable conversions on semi-detached and end terrace roofs
- Building control inspections booked at floor, steel and completion
Trusted Loft Conversion in Hammersmith and Fulham
Owners across Hammersmith and Fulham choose GS Renovation because we are candid about leasehold flats and thorough on houses. The engineer, the steel, the mansard or dormer, the stair, the party wall detail and Hammersmith and Fulham Council building control run as one job. Founder Abdelaaziz Saaid brings 30+ years of hands-on structural experience. One point of contact from first survey to final sign-off.
- New floor structure carried on steel, never on the old ceiling joists
- Building control applications and inspections coordinated for you
- Site left safe and secure at the end of every day
- Founder-led team with 30+ years of hands-on experience
- Ridge height measured before any design work is commissioned
- Dust screens and floor protection in occupied homes