
Planning Permission for a Basement Extension in London
The Project
75 Drakefield Road was a former HMO requiring a basement conversion and a single-storey kitchen extension. The scope combined planning permission with substantial work below the existing house.
AC Design Solution handled the planning, structural engineering, Building Regulations drawings and Party Wall process. Full excavation and underpinning meant that the basement design had to be considered alongside the retained structure and both adjoining properties.
Planning & Heritage
Planning consent was secured from Wandsworth Council on the first submission. The application brought the basement and kitchen extension into one proposal rather than considering the new living space separately from the below-ground works.
Structural Engineering
The structural scope included the basement excavation and complete underpinning of the existing building. Our basement impact assessment service explains the investigations and engineering considerations that can accompany this type of work.
Project Outcome
Party Wall agreements were required with owners on both sides, supported by the technical information for the excavation and underpinning. Compare the scope with our Hazlebury Road basement and extension project, or discuss a basement proposal with the team.

