Knightsbridge · SW1X · SW7
House extensions in Knightsbridge.
Additions that read as if they were always there.
Why Ushii in Knightsbridge
Ushii delivers extension work across Knightsbridge (SW1X · SW7) with directly employed trades. Not a broker, not a list of numbers passed to whoever is free that week. The carpenters, roofers, electricians and gas engineers on your Knightsbridge site are on our payroll, which is why programmes hold and standards stay consistent from strip out to snagging.
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.
Prime central planning departments expect measured drawings, heritage statements and a considerate constructors approach to hours, deliveries and noise. We prepare all of it before a single tool arrives on site.
The best extensions do not announce themselves. Brick coursing lines up. Ridge heights sit down. New glazing frames the garden without stealing focus from the original house. We build extensions the way conservation officers wish everyone did.
What the work covers
House Extensions for Knightsbridge properties.
Feasibility
Planning constraints reviewed alongside your brief before drawings begin.
Coordination
Party wall, structural engineer and building control managed on your behalf.
Craft
Traditional trades and modern envelope detailing working together.
Common questions
House extensions in Knightsbridge, answered.
How much does a extension cost in Knightsbridge?
Cost follows scope, access and the condition of the building rather than the postcode. After a survey in Knightsbridge we issue a fixed, itemised price so you can see exactly what each element of the extension carries. There are no provisional sums hidden in the back pages.
Do you work on mansion block laterals in Knightsbridge?
Regularly. Mansion block laterals, Whole-house Knightsbridge stucco terraces, Penthouse fit-out all feature in our Knightsbridge workload, and each one is surveyed on its own terms before we price anything.
Which areas near Knightsbridge do you cover?
We work across Belgravia, Chelsea, Kensington, Mayfair, Hyde Park and the wider London area, with a directly employed team rather than local trades brought in for the day.
Do we need planning permission?
Many rear extensions fall under permitted development. Anything on a listed building, in a conservation area or beyond PD limits will need consent. We assess this at feasibility.
How do you match old brickwork?
We take physical samples to a handmade brick supplier and dry-lay panels for you to approve before ordering.