Single and double storey extensions in Barking and Dagenham. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions throughout Barking and Dagenham, on the roomy plots of the Becontree Estate, Chadwell Heath and Dagenham. With more than 30 years of experience across IG11, RM8, RM9 and RM10, we handle groundworks, steel, roofing and the full fit-out, plus any dealings with Barking and Dagenham Council.

The 1930s semis in this borough sit on generous plots, which suits single and double storey rear extensions, side-return infills down the passage between houses, and wrap-around designs that do both. We dig and pour the foundations, build up in blockwork or cavity brick, install any steel needed to carry the existing structure, then tie the new roof into the old.
Because interwar houses here often have wider gardens than the packed Victorian terraces closer to central London, there is frequently scope for a substantial kitchen-diner across the back. We manage the whole build, from breaking ground to plastering, so the extension reads as part of the original house rather than an obvious add-on.
Many single storey rear extensions on Becontree and Dagenham semis fall under permitted development, which means no full planning application, though the work still needs building regulations approval and inspection. Larger schemes, most double storey extensions, and anything altering the front or affecting a protected setting will need a planning application to Barking and Dagenham Council.
We assess your specific property early and tell you honestly which route applies. Where the extension sits against the boundary or affects the shared wall of a semi, the Party Wall Act also comes into play. We coordinate the drawings, the council submission where needed, the party wall notices and building control into one clear programme.
Homeowners across Barking and Dagenham choose GS Renovation because we take an extension from foundations to final coat as one accountable team. We know the borough's interwar plots, we are straight about permitted development versus a council application, and 30+ years of local building means solid groundworks, correctly sized steel and a tidy site.
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
Every Barking and Dagenham project is priced on its own merits, as the cost of house extensions varies with the size, specification and condition of the home. We give a clear, itemised quote up front with no obligation. Call 07472 424 226 for an estimate tailored to your property. 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.
How long house extensions takes in Barking and Dagenham depends on the size of the job, but we always agree a programme before starting and stick to it, keeping you informed from the first day to the last.
GS Renovation knows Barking and Dagenham's homes and how to renovate them properly. We handle the structure, the services and the finishes, deal with building control for you, and leave you with work that is certified, guaranteed and built to last.
Many single-storey rear extensions in Barking and Dagenham 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 Barking and Dagenham's homes are 1930s and interwar properties, and we renovate them regularly. We plan each house extensions around their particular characteristics, such as cavity walls, regular original layouts and the generous plots that suit extending, so the result suits the building and meets building control.
Often not. Many single storey rear extensions on interwar semis in Dagenham are permitted development, so no full application is needed, but they still require building regulations approval. Larger or double storey schemes, and anything altering the front, usually need a planning application to Barking and Dagenham Council. We check your property and confirm the correct route before we start.
Yes. We work throughout Barking and Dagenham and the IG11 area, as well as the surrounding parts of East London. Contact us on 07472 424 226 to confirm we cover your street.
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 Barking and Dagenham. 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 Barking and Dagenham and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Barking and Dagenham.
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