Kitchen in dark figured timber with a dark marble worktop.

Luxury builders and refurbishment in Chelsea.

Chelsea · SW3 · Chelsea basement and extensionCompleted work, photograph

Chelsea is close to the studio. We design, price and build homes here, often below ground.

Townhouses and terraces, often built down.

SW3
Townhouses, terraces and garden squares
CD11, 2024
The borough’s own basement policy
7 days
A budget estimate, typically

NU Projects is a design and build company in Fulham SW6, founded in 2010. We design, price and build homes in Chelsea SW3, under one contract. Construction runs from £215 to £800 a sq ft, luxury to super prime finishes. A basement runs £450 to £780 a sq ft, construction only. Call 020 7731 6841, and a budget estimate typically follows within seven days. Buying a house here, the free Buyer’s Report gives a budget in 24 hours.

Chelsea sits along the river, a short way from the studio in Fulham. We have built here for years, on townhouses and terraces.

The houses are mostly Victorian and Georgian terraces, often four storeys and sometimes five. Garden squares sit between them. A basement is a common ask.

Chelsea sits inside the Royal Borough of Kensington and Chelsea. Its basement rule, first adopted as CL7 in 2015, is now Policy CD11. One storey only, and no more than half the garden. Source: RBKC Local Plan 2024, read on 7 October 2026.

Chelsea pricing runs open book on our own rate card. Expect a budget estimate within seven days, a cost plan next, then one contract.

NearbySouth KensingtonKnightsbridgeBelgraviaFulhamPimlico

Chelsea basement and extension.

A new basement, a kitchen extension and a full interior renovation.

Living room with tall steel windows and herringbone parquet.

Chelsea·SW3·Townhouse

Completed in Chelsea

See the project

Completed work, photograph

The design team created our dream Chelsea home, on budget and on time. Thank you.

Kimberly · Chelsea
What basement policy applies in Chelsea?

Chelsea sits inside the Royal Borough of Kensington and Chelsea.

Its policy, CL7, was adopted in January 2015. Now Policy CD11, it allows one storey and no more than half the garden.

Are Chelsea houses usually listed?

Many sit within a conservation area, and some are listed.

We check the property’s status before any scheme is drawn.

How much does a Chelsea renovation cost?

A super prime finish runs £500 to £800 a sq ft, construction only.

Fees, contingency and VAT sit outside that band.

Has NU Projects built in Chelsea before?

Yes, on townhouses and terraces for years, including basements and full renovations.

See the completed Chelsea project above.

Tell us about your home in Chelsea.

Your name and one way to reply are enough. It goes straight to the studio.

A phone number or an email is enough. We only need one.

Optional, it helps us prepare
What is the work?