
Basement swimming pools in West London.
Kensington · W8 · Kensington new-build housesCase study
Pools below West London houses, from the dig to the plant room.
A pool under a West London house, planned from the plant room out.
- Extra depth
- The 2016 SPD allows a little for a pool
- Plant room
- Filtration, heating and air handling
- Two floors down
- Our Kensington pool, below the street
NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle basement swimming pools in West London W/SW, under one contract. A new basement dig typically runs £500k to £900k. Converting an existing basement runs £180k to £300k. Call 020 7731 6841, and a budget estimate typically follows within seven days.
A basement pool is a concrete tank inside a waterproof box. One keeps water in, the other keeps ground water out.
In Kensington and Chelsea, a pool may earn a little extra depth. The basement is still one storey, under half the garden.
The pool hall needs its own air handling. Without it, moisture reaches the rest of the house.
We built a pool two floors below the street in Kensington. The same houses have a steam room on their leisure floor.
What the borough allows for a West London pool.
- Council
- Kensington and Chelsea governs Chelsea, Kensington and Notting Hill, through its 2024 Local Plan. Fulham sits with Hammersmith and Fulham.
- Policy CD11
- Adopted as CL7 in January 2015, kept in the 2024 Local Plan. One storey, under half the garden.
- Basements SPD
- Adopted April 2016. The storey cannot be split in two later. A pool may earn a little extra depth.
- Plant
- A plant room holds filtration, heating and air handling for the pool.
- Dehumidification
- The pool hall needs its own air handling to control moisture.
- Height
- A pool hall wants height, so the floor level is set early.
Source: Kensington and Chelsea’s Local Plan 2024, Policies CD4, CD5, CD11 and CD13. Read on 3 October 2026. Policies change, so we read them again for your address.
Pools and lower floors in West London.

Kensington·New build
Kensington new-build houses
An indoor pool two floors below the street, in Kensington W8.
See the project
Kensington·New build
Kensington new-build houses
A steam room on the lower leisure floor of the same houses.
See the projectCase study
What a basement pool costs in West London.
£180k to £300kConverting an existing basement. A project total, from our 2026 cost guide.
£500k to £900k+Digging a new basement. A project total, from our 2026 cost guide.
The cost guide figures are project totals for a West London basement.
A pool adds depth, plant and waterproofing, so it adds cost.
Fees, party wall costs, contingency and VAT sit outside them.
What West London owners ask about pools.
In West London
- Every service in Fulham
- Basement construction in West London
- Basement gyms in West London
- Basement cinema rooms in West London
- Design and build in West London
Pools nearby
- Basement swimming pools across London
- Basement swimming pools in Chelsea
- Basement swimming pools in Kensington
- Basement swimming pools in South Kensington
- Basement swimming pools in Holland Park
- Basement swimming pools in Notting Hill
- Basement swimming pools in Knightsbridge
- Basement swimming pools in Belgravia
- Basement swimming pools in Mayfair
- Basement swimming pools in St John’s Wood
- Basement swimming pools in Hampstead
- Basement swimming pools in Fulham
- Basement swimming pools in Weybridge
- Basement swimming pools in Cobham
- Basement swimming pools in Oxshott
- Basement swimming pools in Marylebone
- Basement swimming pools in Highgate
- Basement swimming pools in Primrose Hill
- Basement swimming pools in Earl’s Court
- Basement swimming pools in Pimlico
- Basement swimming pools in Westminster
- Basement swimming pools in South West London
- Basement swimming pools in North London
- Basement swimming pools in South London
- Fulham
- Chelsea
- Kensington
- Notting Hill and Holland Park
Further reading, from the blog
Can I build a basement pool in West London?
Often, within the one storey rule.
Kensington and Chelsea allows a little extra depth for a pool.
Why does a basement pool need a plant room?
It holds the filtration, heating and air handling.
We size it early, so it fits inside the storey.
How do you stop damp from a basement pool?
The pool hall gets its own air handling.
It controls moisture before it reaches the house.
Have you built a basement pool in West London?
Yes, two floors below the street in Kensington W8.
We designed and built the houses around it.
See it builtNear West London
See it built.
Finished homes, designed, priced and built by NU.

Fulham · SW6 New build
Fulham, four new-build houses with basements
Four architect designed houses, each with a basement, built as a joint venture.
Case study

Fulham · SW6 Basements
Fulham basements
Basements we have dug and built under Fulham houses, close to our studio.
Case study

Fulham · SW6 House
Fulham house, refurbished throughout
A Fulham family house, renewed from the basement to the roof.
Case study
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