top of page
Landmass_Campden Hill Gardens (13).jpg


3 Types of Basement Conversion in London

Basement conversions are a popular home alteration choice for a reason.

Converting the existing cellar of your property could deliver a significant extra space your family needs. If your house doesn't have a basement, excavating underneath the footprint could add that extra SQ FT and value you need.

1. Refurbishment or fit-out of an existing basement

Basements tend to exist beneath Victorian and Edwardian houses. When your property already has a cellar, the most straightforward option is to work with what you have. If you haven't touched the basement yet, it probably has base brick walls and lacks waterproofing and insulation.

If you are satisfied with the headroom, you can undertake a basement conversion, including damp proofing, insulation and the improvement of the existing staircase. If your cellar lacks enough ceiling height, the basement conversion project becomes more complex; the floor needs to be lowered and the ceiling raised.

2. Adding a new basement

If your home is missing a cellar, you can add a retrofit basement. Adding new space to an existing building requires professional planning and supervision.

Basement excavations are costly investments, but they pay off; basements can be added under the footprint of your property or even extended further. Did you know conversions can add more value than the cost of build in certain London areas such as Kensington and Chelsea, Fulham, Mayfair, Knightsbridge, Belgravia or Putney?

3. Basement from scratch

Basement can be included as a part of a new build project. If you prefer to keep more of your garden space, we highly recommend getting a fully or semi-underground basement space.

Proposed basement design by Nu Projects