Building in Barnes.
Barnes is one of London’s most desirable villages. It’s home to Victorian terraces, mews houses and riverside cottages. Planning is strict, and mansard loft conversions often replace standard dormers to preserve rooflines.
- Postcode SW13
- Borough Richmond upon Thames
- Projects 2
- Travel Under 45 min
What we deliver in Barnes.
Each Barnes street has its own typical layout — Victorian terrace, Edwardian semi, 1930s detached. We adapt the recommendation to the house, the planning context and how you actually want to live.
Rear extensions with brick or timber facades and slim-framed glazing complement houses around Barnes Pond. Mews houses often require vertical additions rather than large rear extensions.
Mansard conversions are the norm here — they add a full extra storey without spoiling the skyline.
Occasionally we replace small cottages with modern family homes — always respecting the village character.
SERVICE 01 House extensions in Barnes
A house extension is the biggest investment you can make in your home — it should transform how your family lives, not just add square metres. We design every extension around how you actually use your space, with a fixed, itemised price and stage-based payments so you stay in control from first sketch to handover.
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SERVICE 02 Loft conversions in Barnes
A loft conversion adds an entire floor without losing any garden. We design lofts as proper rooms — full-height ceilings, generous windows, en-suite bathrooms — not afterthoughts squeezed into the rafters.
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SERVICE 03 New builds in Barnes
New build is the most ambitious thing you can do — a chance to design exactly the home you want from the ground up. We have delivered single houses on infill plots, full plot developments, and demolition + rebuild projects. We work with leading architects or your own.
View serviceRecent work in Barnes.
Recent Barnes projects include a mansard conversion on a Victorian terrace and a complete replacement of a riverside cottage with a contemporary home.
Common Barnes questions.
Things you might need to know about building in Barnes.
Do I need planning permission for an extension in Barnes?
Many extensions in Barnes fall under permitted development. We assess your property type, council restrictions and any conservation status on the first visit.
How long does a project in Barnes 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 Barnes?
Possibly — many Richmond upon Thames streets are within conservation areas which restrict materials and detailing. We have approved schemes in conservation areas across the borough.
What is a typical extension cost in Barnes?
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 Barnes project?
Free quote in 2 minutes — no callbacks, no commitment. Or talk to a real human on 0800 0432 333.