Knightsbridge guide

Building in Knightsbridge: a local guide to renovation, planning and getting it right

20 September 2026 · 5 minute read

The housing stock in Knightsbridge

Mansion blocks, red-brick Victorian flats, stucco terraces and penthouse apartments in managed buildings.

Knightsbridge is a mansion-block market. Delivery is defined by lease conditions, porter-managed access, tight hours and a client base that expects the finish to match a suite at the Berkeley. Our directly employed workshop, stonemasons and joiners work here every week, in occupied and unoccupied blocks, on lateral fit-outs from £2m to £20m.

Most of our Knightsbridge instructions come from owners of mansion block laterals, whole-house knightsbridge stucco terraces, penthouse fit-out, and from clients moving between Belgravia, Chelsea, Kensington, Mayfair who already know the type of building they are buying into.

Planning and consent with the Royal Borough of Kensington & Chelsea and Westminster City Council

The area straddles two boroughs, so the same street can be governed by two different planning teams with two sets of expectations.

Most work here is internal and controlled by the freeholder and managing agent, with party wall awards needed on almost every job.

Our approach is the same every time: establish the constraints before anything is designed, agree the route to consent with the client, and price the job against the scheme that will actually be approved rather than the one that looks best on a first sketch.

The work we carry out in Knightsbridge

The bulk of our Knightsbridge work is lateral apartment conversion, penthouse fit-out, structural openings and complete services replacement.

Lateral apartment fit-out. Combining laterals across mansion floors, with freeholder consents, lift access and porter coordination handled by us.

Penthouse fit-out. Full penthouse fit-out with structural glazing, plant relocation and rooftop terrace works.

Whole-house refurbishment. Refurbishment of Knightsbridge stucco terraces to the standard expected on the top of the prime London market.

Access, neighbours and running a tidy site

Goods lifts are booked by the hour and quiet hours apply in most blocks. We size the team to the lift, not the other way round.

Every trade on a Knightsbridge project is directly employed by Ushii. There is no chain of outside firms to chase, no pricing surprises when a trade turns up, and one team responsible for the work from strip-out to snagging.

Realistic programmes in Knightsbridge

Four to ten months for an apartment depending on structural work.

Those figures assume consent is in place and decisions are made when they are asked for. The single biggest cause of delay on prime London projects is not construction, it is a client decision waiting on a specification that was never finalised. We front-load those choices into the programme so they are made calmly rather than under pressure.

Talk to us about your Knightsbridge project

If you are planning work on a property in Knightsbridge or nearby in Belgravia, Chelsea, Kensington, Mayfair, the useful first step is a site visit. We will walk the building, tell you what the council is likely to want, and give you an honest view of cost and programme before you commit to drawings.

Get in touch through the contact page and a director will arrange to meet you at the property.

Enquire

Own a listed building? Talk to us first.