
Belgravia · SW1X
House extensions in Belgravia.
Additions that read as if they were always there.
Why Ushii in Belgravia
Ushii delivers extension work across Belgravia (SW1X) 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 Belgravia site are on our payroll, which is why programmes hold and standards stay consistent from strip out to snagging.
Belgravia is where the basement code, the party wall surveyors and the discretion of the client converge. Delivery here is about doing the difficult work quietly. Our teams work Eaton Square, Chester Square, Belgrave Square and the Wilton Crescent side streets on a repeat basis, and know how to run a two-year job on a garden-square terrace without becoming the reason a neighbours' association is set up.
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 Belgravia 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 Belgravia, answered.
How much does a extension cost in Belgravia?
Cost follows scope, access and the condition of the building rather than the postcode. After a survey in Belgravia 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 eaton square stucco terraces in Belgravia?
Regularly. Eaton Square stucco terraces, Chester Square houses, Wilton Crescent townhouses all feature in our Belgravia workload, and each one is surveyed on its own terms before we price anything.
Which areas near Belgravia do you cover?
We work across Chelsea, Knightsbridge, Mayfair, Pimlico, Victoria 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.