House Extensions in Barnes, SW13
Rear, side-return, wraparound and double-storey extensions for houses in Barnes, designed, approved and built by one team.
Covered under one contract
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
House Extensions in Barnes.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Barnes generally lend themselves to it: a side return to fill, a rear garden to build into, or on larger plots room for a full-width or double-storey addition.
We design the extension around how you will use it, not around the maximum footprint the rules allow. That means thinking about light, the level change to the garden, where the kitchen sits, how the old and new parts of the house meet and what happens to the rooms you already have. The structural engineering, party wall matters and building control inspections are all handled by us.
Approvals are checked on the first visit. Many single-storey rear extensions fall within permitted development, but the London Borough of Richmond upon Thames applies tighter rules in conservation areas and to flats and listed buildings, so we confirm the route before any drawings are produced and then manage the application if one is needed.
- Area
- Barnes, SW13
- Council
- London Borough of Richmond upon Thames
- Housing
- Georgian and Victorian houses around the Green and the river, Victorian and Edwardian terraces, larger houses on the Castelnau estate and by the Common
- Transport
- Barnes, Barnes Bridge (rail), Hammersmith (Piccadilly, District)
- Rear or side return, on site
- 10 to 16 weeks
- Design and approvals
- 8 to 14 weeks before start
- Glazing lead time
- 6 to 10 weeks, ordered early
- Consent
- Permitted development or householder application
- Party wall
- Notices served by us
Barnes: the houses and the planning rules.
Barnes is a riverside village inside a loop of the Thames: Georgian houses on the Terrace, the Green with its pond, Victorian streets running back towards the Common, and the wide Castelnau estate leading to Hammersmith Bridge. It is quiet, well kept and closely protected.
The projects match the houses: refurbishments of Victorian family homes, side-return and rear extensions, lofts, and the occasional basement where the ground conditions near the river allow. Richmond's conservation guidance applies almost everywhere, and flood risk is checked on riverside sites.
The Barnes Green, Castelnau and Barnes Common conservation areas cover most of the village.
London Borough of Richmond upon Thames
Richmond decides applications; Article 4 directions in the Barnes conservation areas mean most external changes need a full application.
River and flood risk
Riverside streets sit in the Environment Agency flood zone, which affects basements and requires a flood risk assessment.
Castelnau
The paired villas of the Castelnau estate have specific guidance on roofs, side extensions and boundary walls.
Approvals for house extensions in Barnes.
Many single-storey rear extensions are permitted development within the 3 or 4 metre limits, or 6 and 8 metres under prior approval. Conservation areas, flats, listed buildings and larger schemes need a householder application, and every extension needs building regulations approval.
Richmond decides applications; Article 4 directions in the Barnes conservation areas mean most external changes need a full application.
What house extensions in Barnes includes.
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
House Extensions in Barnes: your questions.
Do I need planning permission for an extension in Barnes?
Not always. Permitted development covers many single-storey rear extensions on houses, but the London Borough of Richmond upon Thames removes those rights in some conservation areas, and flats and listed buildings always need an application. We confirm the route at the site visit.
How long does an extension take to build?
Ten to sixteen weeks on site for a single-storey extension once approvals are in place, plus the design and approval period beforehand. Glazing has the longest lead time, so we order it early.
Which parts of Barnes do you cover?
All of Barnes and SW13, including The Terrace, Castelnau, Church Road, Station Road, Lonsdale Road, Nassau Road, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Other services in Barnes.
House Refurbishment in Barnes
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Flat Refurbishment in Barnes
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Structural Alterations in Barnes
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Loft Conversions in Barnes
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Basement Conversions in Barnes
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Kitchen Renovation in Barnes
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Bathroom Renovation in Barnes
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Bespoke Joinery & Fitted Furniture in Barnes
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Architectural & Interior Design in Barnes
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Planning Permission & Building Regulations in Barnes
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We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.