
House extensions in West London.
Fulham · SW6 · Fulham Victorian houseCase study
Garden rooms, glazed kitchens and wraparounds for West London houses, planned around family life.
A bigger kitchen in West London, without losing the garden.
- Glazed roofs
- Daylight carried deep into the plan
- Group balance
- Pairs and terraces kept symmetrical
- Rear access
- Kept open for the house and next door
NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle house and kitchen extensions in West London W/SW, under one contract. A rear kitchen extension typically runs £160k to £250k. A side return extension typically runs £140k to £220k. Call 020 7731 6841, and a budget estimate typically follows within seven days.
Most families here want one big room for cooking, eating and sitting. An extension makes it, by joining the back rooms to the garden.
Kensington and Chelsea looks at the group, not just your house. A pair must stay balanced, and important gaps stay open.
Light is the hard part in a deep plan. Roof glazing and tall doors carry daylight back into the middle of the house.
Our Fulham job joined a navy kitchen to a glazed rear room. In Chelsea, a new extension sits over a new basement.
How the borough judges a West London addition.
- Council
- Kensington and Chelsea governs Chelsea, Kensington and Notting Hill, through its 2024 Local Plan. Fulham sits with Hammersmith and Fulham.
- Symmetry
- An extension must not unbalance a terrace’s symmetry or close an important gap.
- Access
- It must not cut off rear access, for the house or its neighbours.
- Communal gardens
- Rear elevations facing communal gardens may matter as much as fronts, the plan says.
- Rear additions
- Policy CD13. Keep the even rhythm of rear additions, and stay below the eaves.
- Conservatories
- A roof level conservatory is resisted. At garden level, one can work.
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.
What a house extension costs in West London.
£160k to £250kA rear kitchen extension. A project total, from our 2026 cost guide.
£200k to £320kA wraparound extension. A project total, from our 2026 cost guide.
West London additions often need conservation consent first.
Each figure covers the whole project.
Fees, party wall awards, contingency and VAT are added.
What West London owners ask about extensions.
In West London
- Every service in Fulham
- Loft conversion in West London
- Party wall surveying in West London
- Planning consultants in West London
- Architectural design in West London
Extensions nearby
- House extensions across London
- House extensions in Fulham
- House extensions in Chelsea
- House extensions in Kensington
- House extensions in Clapham
- House extensions in Notting Hill
- House extensions in South Kensington
- House extensions in Knightsbridge
- House extensions in Belgravia
- House extensions in Mayfair
- House extensions in Holland Park
- House extensions in Marylebone
- House extensions in St John’s Wood
- House extensions in Hampstead
- House extensions in Highgate
- House extensions in Primrose Hill
- House extensions in Earl’s Court
- House extensions in Pimlico
- House extensions in Westminster
- House extensions in Weybridge
- House extensions in Cobham
- House extensions in Oxshott
- House extensions in South West London
- House extensions in North London
- House extensions in South London
- Fulham
- Chelsea
- Kensington
- Notting Hill and Holland Park
Further reading, from the blog
Can a West London extension unbalance a pair of houses?
Kensington and Chelsea will refuse one that does.
Symmetry and the important gaps between houses are protected.
Can I build a conservatory on a West London roof?
A roof level conservatory is resisted in Kensington and Chelsea.
At garden level, one can work.
Must a West London extension keep access to the back?
Yes. It cannot cut off rear access.
That protects your neighbours’ access too.
Does the garden side of a Kensington house matter for an extension?
On a communal garden, the rear can matter as much as the front.
We draw it with the same care.
What budget suits a West London kitchen extension?
Plan on £160k to £250k for a rear kitchen extension.
Wraparounds run £200k to £320k, as whole project totals.
See it builtNear West London
See it built.
Finished homes, designed, priced and built by NU.

West London Joinery
West London bespoke joinery
Made to measure kitchens, bookshelves, wardrobes and media walls for homes across London.
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Fulham · SW6 New build
Fulham, four new-build houses with basements
Four architect designed houses, each with a basement, built as a joint venture.
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Fulham · SW6 Basements
Fulham basements
Basements we have dug and built under Fulham houses, close to our studio.
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Tell us about your home in West London.
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

