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. The calculator gives your own range in a minute, by scope and finish. 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. 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.
Chelsea basement and extension.
A new basement, a kitchen extension and a full interior renovation.
Chelsea·SW3·Townhouse
Completed in Chelsea
See the projectCompleted work, photograph
The design team created our dream Chelsea home, on budget and on time. Thank you.
Five kinds of job, one contract.
-
Basements
Chelsea sits inside the Royal Borough of Kensington and Chelsea. A new basement follows Policy CD11, one storey, no more than half the garden.
Read the service -
Architecture
Most Chelsea houses stay whole houses. The design carries through every storey, not one flat.
Read the service -
Interior design
Garden squares and tall rooms are common here. Joinery and lighting are drawn to suit a taller Chelsea storey.
Read the service -
Extensions and lofts
A Chelsea loft or return extension is checked against Policy CD13 first. Then against the borough’s conservation rules.
Read the service -
Construction
Chelsea sites often share a garden square. We agree deliveries with neighbours before work starts.
Read the service
In depth hereBasement construction in ChelseaHouse extensions in ChelseaInterior design in ChelseaLuxury refurbishment in ChelseaBespoke joinery in ChelseaParty wall surveying in ChelseaLoft conversion in ChelseaArchitectural design in ChelseaBasement swimming pools in ChelseaBasement gyms in ChelseaBasement cinema rooms in ChelseaBasement golf simulator rooms in ChelseaLuxury painting and decorating in Chelsea
Across LondonDesign and build company in LondonLuxury renovation and refurbishmentKitchen and house extensionsLoft conversions
The studio is at 10-12 Fulham High Street, London SW6 3LQ. Call 020 7731 6841 or send the form below.
What owners in Chelsea ask us.
Further reading, from the journal
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?
Nick prices a super prime finish after a free visit.
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.
- 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