House extensions & lofts in Twickenham
Twickenham's 1930s semis and Edwardian terraces take lofts and rear extensions particularly well — our completed Twickenham project combined both, adding two bedrooms, a bathroom and a new kitchen in a single build. Design, planning and construction by one team.
- Postcode TW1
- Borough Richmond upon Thames
- Projects 1
- Free quote 2 min online
What we deliver in Twickenham
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 single- and double-storey extensions enlarge living areas; side-return extensions are less common because many plots are semi-detached.
Dormer and mansard conversions provide generous bedroom suites. Hip-to-gable conversions are ideal for 1930s semis.
On corner plots and end gardens, we replace outdated homes with energy-efficient family houses.
SERVICE 01 House extensions in Twickenham
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 Twickenham
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 Twickenham
Ground-up homes on infill plots, demolition-and-rebuild, and small multi-unit schemes.
View serviceRecent work in Twickenham
Recent Twickenham projects include a double-storey kitchen/diner extension, a dormer conversion with a master suite and a modern new build on the site of a former bungalow.
Common Twickenham questions
Things you might need to know about building in Twickenham.
Do I need planning permission for an extension in Twickenham?
Many extensions in Twickenham fall under permitted development. Where a full application is needed, it goes to Richmond upon Thames 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 Twickenham 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 Twickenham?
Several streets in Richmond upon Thames 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 Twickenham?
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 Richmond upon Thames neighbourhoods
We deliver projects across the borough — same team, same pricing, same fixed-price contract.
Ready to start your Twickenham project?
Get an instant estimate in 2 minutes — no callbacks, no commitment. Or talk to a real person on 0800 0432 333.