Basement Extension Costs Table
In certain cases, there may not be much room to expand outwards or upwards, this is especially true in central London. However, a basement extension could be the solution.
Expanding underground poses a number of more challenges when compared to above-the-ground projects, so keep in mind that the costs outlined below are an estimate.
Cost of Basement Extension in London
The cost of basement extensions usually average around £3000/sqm.
Planning: from £2000
Construction from £100K
Cost/m² about £3000m²
We conduct a full site survey with accurate measurements and photographs, enabling us to prepare scaled drawings for planning applications and documentation for your proposal.
We assess the history/context of the site and surroundings, research the local planning authority and establish previously proposed planning applications, either accepted or refused.
We offer a wide range of project development and management services during the construction phase, including project and development management.