Rear and side dormers to South Hampstead’s Victorian villas — adding headroom and a usable room while keeping the front roofline intact and Camden on side.
Speak to the studio directly: 020 8054 8756
A dormer is usually the most efficient way to add real headroom to a South Hampstead loft: it projects from the roof slope to create full standing height and a square, usable room. On the villas of the conservation area the front slope faces the street, so front dormers are normally resisted — the volume is won at the rear or side instead.
Even a rear dormer needs Camden planning permission here, with a design that stays subordinate to the roof and respects the consistent roof forms the South Hampstead Conservation Area values. We size and position the dormer so it reads correctly, does not dominate the original roof, and sits well with the neighbouring houses.
We assess your specific roof first — pitch, ridge height and party walls — then design a dormer that wins consent and works structurally, with the staircase, fire strategy and Building Control handled in one contract.
Where the dormer can go — and how big — is set by Camden conservation policy.
On the street elevation a dormer harms the conservation roofline, so the room is gained at the rear or side.
Camden expects a dormer set below the ridge and in from the edges, framed to sit quietly on the roof.
A dormer in the conservation area needs a Camden application and a roof study showing it is not prominent.
A new floor needs steel support, a compliant staircase and a fire strategy — engineered in-house.
From a roof feasibility study to a finished, weather-tight room — under one team.
Measuring pitch, ridge and head height to confirm a dormer delivers usable space.
Drawings and a heritage case for a subordinate rear or side dormer.
Steel and floor structure to carry the new room, with Building Control.
Framing, roofing, lead or zinc weathering and insulation to current standards.
A compliant stair woven into the floor below without losing a room.
Escape, protected route and Building Regulations sign-off.
Windows or rooflights set to suit the elevation and bring in light.
Bedroom, study or bathroom fit-out, snagging and a clean handover.
We design and build dormer conversions where the roof and conservation area allow, across South Hampstead’s NW6 villas.
South Hampstead sits within the London Borough of Camden — see our South Hampstead area page and North London refurbishment overview.
Book a no-obligation consultation at our North London studio on Finchley Road, in Hampstead, or at your property. We will give you an honest read on approvals, programme and budget band — in pounds sterling — before you commit.
Site visit · approvals read · outline budget band (GBP) · programme indication. No obligation.
Send Project DetailsThe same NW3 design-build team covers the neighbouring areas: