Single and double storey extensions in Acton. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Acton and the wider W3 postcode, working with the bay-fronted Victorian and Edwardian terraces that line the streets near Ealing Common. With 30+ years in Ealing borough, we handle everything from foundations and steel to the final fit-out, on single storey, double storey, side-return and wrap-around projects.

The classic Acton project fills in the side return, the narrow alley beside the rear closet wing, to widen a cramped galley kitchen into a bright open-plan space. We dig and lay the foundations, build up in matching brick, install the steel beams that carry the original rear wall, and tie the new roof into the existing terrace so it looks like it always belonged there.
Wrap-around extensions combine the side return with a rear projection to make the most of the plot, while double-storey schemes add a bedroom above. On these solid-walled W3 terraces we pay close attention to damp-proofing, ground levels and how the new structure meets the period brickwork, so the addition performs as well as it looks.
Whether your Acton extension is permitted development or needs a full planning application depends on the property. Many single-storey rear and side-return extensions fall under permitted development, but corner plots, larger footprints, and any home in a conservation area or with an Article 4 direction may need permission from Ealing Council. We assess your specific house before any drawings are finalised.
Extending up to or across a boundary on a terraced W3 street almost always engages the Party Wall Act, since your neighbours share the flank wall. We guide you through the notices alongside the building regulations approval that the foundations, steel and drainage all require. The structural sign-off and the planning route are two separate things, and we keep both on track.
Acton homeowners choose GS Renovation because one team carries the extension from foundations to final coat. We advise honestly on whether your project is permitted development or needs planning, manage the party wall notices your terrace will require, and build to building regulations throughout. Three decades across Ealing borough mean no surprises on a W3 plot.
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great attention to detail. I've already recommended him to others.
Splendid job on our new kitchen refurb, including new flooring, moving the services, installing RSJ and preparing space for new back doors… George was always friendly, communicative and has an excellent attention to detail, ensuring everything is finished to a high standard.
Giorgio is an excellent and intelligent workman, and with very reasonable prices!… He paid a lot of attention to detail that is not common at all, and the final result was immaculate. Highly recommended!
FAQ
There is no fixed price for house extensions in Acton, because so much depends on your property and what you want to achieve. We survey first, then provide a transparent written quotation. Contact GS Renovation on 07472 424 226 for a free estimate. As a rough guide, house extensions in London typically starts from roughly £40,000 for a single-storey rear extension and rises with size and specification (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.
Most house extensions projects in Acton take between two and eight weeks depending on the scope and whether structural work is involved. We provide a clear programme before work begins so you know exactly what to expect.
GS Renovation's team brings over 30 years of hands-on experience to house extensions and wider building work across Acton and the surrounding area. We offer free quotes, a dedicated project manager, full insurance, building control compliance where required, and comprehensive aftercare.
Many single-storey rear extensions in Acton fall under permitted development, but side returns, double-storey extensions and work in conservation areas usually need full planning permission. We assess your property and manage both the planning application and building control.
Yes. A large share of Acton's homes are Victorian and Edwardian terraced properties, and we renovate them regularly. We plan each house extensions around their particular characteristics, such as solid brick walls, rear closet wings, side returns and original period features, so the result suits the building and meets building control.
Often not. Many single-storey side-return and rear extensions in Acton qualify as permitted development, so no planning application is needed, though building regulations approval still applies to the foundations, steel and drainage. But conservation areas, Article 4 directions and larger schemes can require permission from Ealing Council. We check your specific W3 property before committing to a design, so you know the route from the start.
We cover the whole of Acton and the W3 area and the surrounding West London. If you are nearby and not sure, just call 07472 424 226 and we will tell you straight away.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Acton. Explore what else we do locally:
Steel beam installation, RSJ and structural alterations.
Safe load-bearing wall removal with steel beam support.
Structural alterations, new openings and steel support.
Chimney breast removal with gallows bracket or beam support.
Open-plan kitchen, diner and living conversions.
Full refurbishments and whole-house renovations.
Bespoke kitchen design and installation.
Luxury bathroom and wet-room refurbishment.
Same Service, Nearby Areas
We carry out house extensions across Acton and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Acton.
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