Kensington · SW7 · W8
House extensions in Kensington.
Additions that read as if they were always there.
Why Ushii in Kensington
Ushii delivers extension work across Kensington (SW7 · W8) 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 Kensington site are on our payroll, which is why programmes hold and standards stay consistent from strip out to snagging.
Kensington houses are technically demanding. Grade II listing, listed party walls, basement engineering under a stucco facade and a Royal Borough of Kensington & Chelsea planning department that expects proper drawings and proper trades. We work here every week. Our teams know the streets, the neighbours' surveyors and the site logistics you need to run a full refurbishment on a Cornwall Gardens crescent without upsetting the entire postcode.
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 Kensington 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 Kensington, answered.
How much does a extension cost in Kensington?
Cost follows scope, access and the condition of the building rather than the postcode. After a survey in Kensington 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 stucco-fronted family houses in Kensington?
Regularly. Stucco-fronted family houses, Mansion flats and lateral conversions, Garden-square townhouses all feature in our Kensington workload, and each one is surveyed on its own terms before we price anything.
Which areas near Kensington do you cover?
We work across Chelsea, Notting Hill, Holland Park, Knightsbridge, South Kensington 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.