
Chelsea · Prime residential
Luxury construction & refurbishment in Chelsea.
Building for private clients across Chelsea, from the King's Road terraces to riverside penthouses.
SW3 · SW10
Delivering in Chelsea
Chelsea projects run in tight streets with tighter neighbours. Delivering on a Cheyne Walk crescent or a Cadogan Gardens mansion block means small skips, quiet unloads, protected communal parts and an office happy to answer the freeholder's managing agent by return. Our directly employed teams work here often enough that most of the porters know us by name.
Ushii is a London construction house working with private clients, family offices and developers across Chelsea and the surrounding prime postcodes. Every project is delivered by our own directly employed teams under a single point of accountability from first survey to final handover.
Properties we work on
What we build in Chelsea.
Where our teams focus
Chelsea disciplines.
Prime residential refurbishment
Whole-house or lateral flat refurbishment finished to the standard that keeps the property saleable at the top of the Chelsea market.
Mansion-block fit-out
Working under lease conditions, freeholder consents and porter-managed access without disrupting neighbours.
Basement and pool
Lightwell excavation, plant rooms and pool tanking, engineered to RBKC's basement code and delivered entirely by our own directly employed trades.
Kitchen and joinery replacement
Bespoke joinery from our own workshop, installed by the makers, in occupied properties over defined shutdown windows.

Services available in Chelsea
Every discipline, under one team.
Answers
What Chelsea clients ask.

How do you handle a mansion block fit-out with a resident freeholder?
We work under a signed licence for alterations, liaise with the managing agent weekly, protect the common parts on day one and hold hoist and lift use to the permitted hours.
Can you deliver a Chelsea kitchen in a shutdown window?
Yes. Bespoke joinery is made and finished in our workshop, then installed on site in a defined six to ten week window with the client back in the property for the rest of the year.
What's your typical Chelsea project value?
Full refurbishments start around £1.2m and run into the tens of millions for whole-house delivery with basement, pool and lightwell.
Do I need planning permission for an extension in Chelsea?
Freeholder and estate consent often matters as much as planning. Cadogan and other estates have their own approval process running alongside RBKC, and the two rarely move at the same speed. We confirm the position for your specific address before any design work begins, including whether the property sits inside a conservation area or carries an Article 4 direction.
Which council covers Chelsea?
Chelsea is covered by the Royal Borough of Kensington & Chelsea. Cheyne Walk, the Cadogan estate streets and much of the area north of the King's Road sit within conservation areas with strong controls on windows, railings and roof alterations.
How long does a project in Chelsea usually take?
Six to twelve months for a terraced house refurbishment, three to six months for a mansion flat fit-out.
What kind of properties do you work on in Chelsea?
Georgian and Victorian terraces, riverside houses, estate-managed mansion blocks and King's Road commercial frontages. Our Chelsea work is mainly whole-house refurbishment, rear and side returns, loft conversions within the existing roofline, and full apartment fit-outs.
Do you use subcontractors on Chelsea projects?
No. Every trade on site is directly employed by Ushii, so the people who price your Chelsea project are the people who build it.
Services in Chelsea
Explore a specific trade in Chelsea.
Local guide
Building in Chelsea: renovation, planning and getting it right
Housing stock, council planning policy, realistic programmes and the site logistics behind a Chelsea project.
Read the guide →
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