Basement conversions in Notting Hill — designed within RBKC’s strict basement policy, with the Basement Impact Assessment, communal-garden sensitivities and party wall all handled by one team.
Speak to the studio directly: 020 8054 8756
Notting Hill sits at the centre of London’s basement story, and the Royal Borough now has one of the strictest basement policies in the country. New basements are generally limited to a single storey, must not extend under more than half of the garden, need at least a metre of soil above any part beneath a garden, and require a Basement Impact Assessment covering structure and groundwater plus a Construction Traffic Management Plan.
On top of that, many Notting Hill houses sit on or near communal garden squares and tightly-packed terraces, so neighbours and the setting are unusually sensitive. A basement here is judged not just on engineering but on its effect on the gardens, the trees and the people next door — which is why a compliant, well-argued scheme matters so much.
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, no scheme proposed that the borough will simply refuse.
In Notting Hill the basement policy and the communal-garden setting set what is buildable.
RBKC policy generally limits a new basement to one storey under the house and part of the garden.
A BIA on structure, ground movement and groundwater is required; we commission and coordinate it.
Communal gardens, trees and close neighbours make the setting unusually sensitive.
A Construction Traffic Management Plan and method statements govern the works on a tight site.
From policy feasibility to a dry, finished basement — all in-house.
Testing the site against RBKC basement policy before any design.
Commissioning the Basement Impact Assessment, structural method and CTMP.
Drawings and a 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 RBKC policy across Notting Hill’s terraces and villas in W11.
Notting Hill sits within the Royal Borough of Kensington & Chelsea — see our Notting Hill area page and South West London refurbishment overview.
Book a no-obligation consultation at 2 Eaton Gate in SW1, at our Hampstead studio, 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.
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