Basement swimming pools in South Kensington.
Kensington · W8 · Kensington new-build housesCompleted work, photograph
South Kensington’s white terraces were built tall, with deep footings. A pool hall here is a matter of careful sequence.
Why a South Kensington pool starts at the bottom.
- SW7
- Stucco terraces and mansion blocks beside the museums.
- 2016 SPD
- It allows a little extra depth for a swimming pool.
- Two floors down
- Our nearby pool sits two floors below the street.
NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle basement swimming pools in South Kensington SW7, under one contract. A basement runs £450 to £780 a sq ft, construction only. Call 020 7731 6841, and a budget estimate typically follows within seven days.
SW7 is stucco terraces, mansion blocks and a few mews close to the museums. The houses often rise over five levels. A pool belongs at the bottom, where noise and humidity stay clear of bedrooms. The stair, the lift and the plant need one clear vertical route.
Here the Basements SPD of 2016 is the useful text. It allows a little extra depth for a swimming pool. The limit stays at one storey under Policy CD11, and under half the garden. The extra depth is for the water, not for another floor.
The tank is a concrete box, cast to hold water in and groundwater out. We treat those as two jobs, a structural tank and a waterproof lining. Air handling comes next, because warm moist air must never reach the floors above. The plant is sized once the pool is fixed.
Close by in Kensington we built a pool two floors below the street. The same job holds a steam room on the lower leisure floor. We design, price and build the shell, the tank and the finishes together.
What the council allows in South Kensington.
- Council
- Royal Borough of Kensington and Chelsea.
- Pools
- The 2016 Basements SPD allows a little extra depth for a swimming pool.
- Policy CD11
- Adopted as CL7 in 2015, kept in the 2024 Local Plan. One storey, under half the garden.
- Planning
- Since April 2016, every basement here needs planning permission.
- Dehumidification
- The pool hall needs its own air handling to control moisture.
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 in the area.
Kensington·New build
Kensington new-build houses
Two Kensington houses nearby, with a pool two floors down.
See the project
Kensington·New build
Kensington new-build houses
The finished lower leisure floor in the same houses, with a steam room.
See the projectCompleted work, photographs
What a basement pool costs in South Kensington.
£450 to £780a sq ft, construction only. Our basement band.
£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.
These are two kinds of figure. The band is a rate per square foot, construction only.
The cost guide figures are whole project totals.
Fees, party wall costs, contingency and VAT sit outside them.
What South Kensington owners ask about pools.
In South Kensington
- Every service in South Kensington
- Interior design in South Kensington
- Basement construction in South Kensington
- Luxury refurbishment in South Kensington
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- Basement cinema rooms in South Kensington
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Pools nearby
- Basement swimming pools across London
- Basement swimming pools in Chelsea
- Basement swimming pools in Kensington
- Basement swimming pools in Holland Park
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- Basement swimming pools in Belgravia
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- Basement swimming pools in St John’s Wood
- Basement swimming pools in Hampstead
- Basement swimming pools in Fulham
- Kensington
- Chelsea
- Knightsbridge
Further reading, from the journal
How does a South Kensington pool differ from an ordinary basement?
The floor, walls and air are all designed for water. The load is far above a normal room.
The depth allowance for a pool is the one extra the SPD gives.
Can a South Kensington mansion block flat have a pool?
Only if the building has depth below it and the freeholder agrees.
Most pool halls here sit under houses, not flats.
Where does the pool hall air go in a South Kensington terrace?
It is dried and recycled, with fresh air added in measured amounts.
Ducts run to the plant room, then to the outside.
Does a South Kensington pool come with a steam room or gym?
Often a pool shares its floor with a steam room or sauna.
The same plant and air handling serve both, which saves space.
Can a South Kensington pool be built under a listed terrace?
Kensington and Chelsea resists any dig under a listed building.
We check the listing at the start, before any money is spent on design.
Tell us about your home in South Kensington.
Your name and one way to reply are enough. It goes straight to the studio.
- Already have an architect or designer? We build to their design. Working with your designer
- An NDA on request, and your home is never published without your consent. How we work in confidence