GS Renovation carries out loft work in Notting Hill, among the stucco terraces and converted townhouses of W11. Nearly everything here sits in a conservation area, much of it is listed, and a large share is flats. Planning is the first hurdle rather than the last, and we are straight with you about it.
Georgian and Regency roofs under conservation control
The terraces around Portobello Road and the garden squares were built as single houses with shallow roofs behind parapets, and their roofscape is exactly what conservation designation exists to protect. Permitted development rights for loft alterations do not apply in a conservation area, and on a listed building you need listed building consent alongside planning permission from the Royal Borough of Kensington and Chelsea. A rear box dormer is not a realistic proposal on most of these houses.
Where extra space is achievable, a mansard behind the parapet is usually the form under discussion, matching the pitch, the materials and the pattern of neighbouring roofs. It gives the most volume of any type and it costs accordingly, roughly £70,000 to £100,000 or more as an indicative London range for 2026, before the standard of finish these houses call for. Conservation rooflights are the lighter-touch option where the roof void is already tall enough to use.
Maisonettes, leases and what the build involves
A great many W11 addresses are flats or maisonettes carved out of one original house. The roof and its void almost always remain with the freeholder, so the space above your ceiling is not yours to build in. Buying or licensing it, varying the lease and satisfying the block insurer all come before any planning question, and in most buildings the project stops there. We say that at the first visit rather than after a set of drawings has been paid for.
On a whole house the work is heavy and precise. Steel beams span between the party walls onto padstones, sized by the structural engineer, and the new floor joists sit clear of the old ceiling. Part B requires a protected stairwell running to a final exit, which in a house of four or five storeys is a serious piece of design. The Royal Borough's building control inspects in stages, and both neighbours in a terrace need party wall notice, served by you.
- Mansard conversions where planning will not accept a dormer
- En suite plumbing, drainage and mechanical extraction
- Staircase design to Part K, including the landing below
- Dormer cheeks, flat roof and leadwork detailed to last
- Trussed roofs redesigned before any web is cut
Trusted Loft Conversion in Notting Hill
Notting Hill owners choose GS Renovation because we build to the architect's and engineer's design, respect the constraints a listed W11 house carries, and keep a busy street workable while the structure goes in. Royal Borough building control and party wall coordination are handled as part of the job. Founder Abdelaaziz Saaid brings 30+ years of hands-on experience to central London work.
- Waste cleared as we go, not left piled in the garden
- Materials priced at options, so you choose the finish
- A written scope and programme agreed before work starts
- Staircase set out to Part K within the space you have
- Party Wall notices prepared for steels bearing into a shared wall
- Interlinked mains alarms fitted and certified