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Planning Permission for a Basement Extension in London

A basement conversion and rear kitchen extension at 75 Drakefield Road, Wandsworth, with excavation, underpinning and Party Wall work on both sides.
Project overview

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.

Project data

Project Facts

Borough Wandsworth
Property Type Terraced
Extension Type Basement Extension • Rear Extension
Planning Constraints Article 4 Direction • Conservation Area • Flood Zone
Services Delivered Architectural Design • Building Regulation Drawings • Measured Building Survey • Party Wall Surveying • Planning Permission
Project Status Completed • Planning Approved
Planning strategy

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.

Engineering coordination

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.

Consent and delivery

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.