Hampstead · NW3
House extensions in Hampstead.
Additions that read as if they were always there.
Why Ushii in Hampstead
Ushii delivers extension work across Hampstead (NW3) 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 Hampstead site are on our payroll, which is why programmes hold and standards stay consistent from strip out to snagging.
Hampstead is one of London's most protected conservation landscapes. Church Row, Downshire Hill, Well Walk and the Redington-Frognal conservation area all sit under strict Camden controls, and the ground behind most of these houses is unforgiving for basement work. We work here regularly, delivering full refurbishments and carefully engineered extensions that read as part of the original house, not tacked on.
North London boroughs vary widely on permitted development, roof extensions and rear additions. We confirm what your specific street allows before drawings are paid for.
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 Hampstead 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 Hampstead, answered.
How much does a extension cost in Hampstead?
Cost follows scope, access and the condition of the building rather than the postcode. After a survey in Hampstead 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 georgian townhouses on church row and flask walk in Hampstead?
Regularly. Georgian townhouses on Church Row and Flask Walk, Redington and Frognal Arts and Crafts houses, Well Walk and Downshire Hill villas all feature in our Hampstead workload, and each one is surveyed on its own terms before we price anything.
Which areas near Hampstead do you cover?
We work across Belsize Park, Primrose Hill, Highgate, Swiss Cottage, West Hampstead 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.