House extensions & lofts in Hammersmith
Rear kitchen extensions with full-height glazing, lofts under new dormers — Hammersmith's Victorian terraces take both, and our completed W6 extension shows the standard we hold. One team from design to building control, fixed itemised price throughout.
- Postcode W6
- Borough Hammersmith and Fulham
- Projects 1
- Free quote 2 min online
What we deliver in Hammersmith
Every street sits differently — a period terrace, a post-war semi, a modern infill. We shape the recommendation around your actual house, its planning context and how you want to live.
Rear and side-return extensions open up the typical Hammersmith terrace into bright, open-plan living space. We manage design, planning and build as one team.
Dormer and hip-to-gable loft conversions add bedrooms to Hammersmith's terraces and semis — a cost-effective way to upsize in place.
Where a plot or a tired property allows, we take on replacement new-builds, handling everything from feasibility to handover.
SERVICE 01 House extensions in Hammersmith
Single-storey, double-storey, side-return and wrap-around extensions — designed, planned and built by one in-house team.
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SERVICE 02 Loft conversions in Hammersmith
Dormer, mansard, hip-to-gable and L-shape lofts — full-height ceilings, proper staircases, en-suites.
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SERVICE 03 New builds in Hammersmith
Ground-up homes on infill plots, demolition-and-rebuild, and small multi-unit schemes.
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Common Hammersmith questions
Things you might need to know about building in Hammersmith.
Do I need planning permission for an extension in Hammersmith?
Many extensions in Hammersmith fall under permitted development. Where a full application is needed, it goes to Hammersmith & Fulham Council — we assess your property type, the council's restrictions and any conservation status on the first visit, and handle the application ourselves.
How long does a project in Hammersmith typically take?
From first consultation to handover: 6–9 months for a single-storey extension or loft, 9–14 months for double-storey or wrap-around. We give you a tighter estimate after the survey.
Are there conservation areas in Hammersmith?
Several streets in Hammersmith & Fulham Council's area fall within conservation areas that restrict materials and detailing. We check your exact address against the register on the first visit, and we have approved schemes in conservation areas nearby.
What is a typical extension cost in Hammersmith?
Build cost in this part of London runs £2,500–£4,000 per square metre for a finished extension including kitchen and finishes. Our calculator gives a personalised estimate.
Other Hammersmith and Fulham neighbourhoods
We deliver projects across the borough — same team, same pricing, same fixed-price contract.
Ready to start your Hammersmith project?
Get an instant estimate in 2 minutes — no callbacks, no commitment. Or talk to a real person on 0800 0432 333.