Basement conversions in South Hampstead — designed within Camden’s strict basement policy, with the Basement Impact Assessment, neighbour protection and party wall all handled by one team.
Speak to the studio directly: 020 8054 8756
Camden has one of the strictest basement policies in London, and South Hampstead’s villas sit squarely within it. Under the Camden Local Plan’s basement policy, new basements are generally limited to a single storey, must not extend under more than half of the garden, and require a Basement Impact Assessment prepared by a chartered engineer covering structure, ground stability and groundwater.
On the closely-spaced villas and gardens of the conservation area, neighbours and trees are sensitive too, so a basement here is judged not just on engineering but on its effect on the setting and the people next door. A compliant, well-argued scheme is the only kind worth pursuing — a non-compliant one is simply refused.
We design within the policy from the outset, commission and coordinate the reports, engineer the underpinning and waterproofing, manage the party wall, and build a dry, usable room — one contract, honest budgets in pounds sterling, and no scheme proposed that Camden will reject.
In South Hampstead the Camden basement policy and the close-set villas set what is buildable.
Camden’s basement policy generally limits a new basement to one storey under the house and part of the garden.
A BIA by a chartered engineer covering structure, ground and groundwater is required; we commission it.
Close-set villas and garden trees make the setting sensitive, which shapes the design.
A construction method statement and traffic management govern the works on a tight site.
From policy feasibility to a dry, finished basement — all in-house.
Testing the site against Camden’s basement policy before any design.
Commissioning the Basement Impact Assessment, structural method and traffic plan.
Drawings and a Camden planning case for a compliant single-storey basement.
Sequential, engineer-designed underpinning to form the depth safely.
Schedules of condition and awards with neighbours on every boundary.
Type C cavity-drain or tanked systems with pumps and a maintainable design.
Lightwells and mechanical ventilation to make the room usable.
Kitchen, media or guest-suite fit-out, snagging and handover.
We design and build single-storey basements within Camden policy across South Hampstead’s villas in NW6.
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: