Single and double storey extensions in Wanstead. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Wanstead, from single-storey rear additions to double-storey and wrap-around projects on the Victorian and Edwardian terraces near Wanstead Park. With 30+ years of experience in E11 and Redbridge, we handle the groundworks, steel beams, roof and full fit-out as one accountable project.

The most popular Wanstead extension fills in the side return beside the rear closet wing, widening a narrow galley kitchen into a bright open-plan space that runs the full width of the house. These terraces were built with generous rear gardens backing towards the park and forest, which usually leaves room for a rear extension as well, giving you a large kitchen-diner opening onto the garden. We dig the foundations, form the steel structure and build the roof to suit the original brickwork.
Because the new opening removes load-bearing walls, a structural engineer sizes the steel beams and building control inspects the work at each stage. Where the extension meets the shared boundary, the Party Wall Act applies and we serve notice on your neighbour in good time. We finish the whole thing, from the screed and underfloor heating to the glazing, plastering and decoration, so you deal with one team from foundations to handover.
Many single-storey rear and side-return extensions in Wanstead fall under permitted development, meaning they do not need a full planning application to Redbridge Council, though the exact limits depend on your property, its plot and whether earlier extensions have used up your allowance. Double-storey work, anything close to a boundary or work on a house affected by an article 4 direction is more likely to need permission, so we assess your specific E11 address before promising anything.
We tell you clearly at the outset whether your project is permitted development or needs planning permission, and we handle the drawings and applications either way. Separately from planning, all the structural building work must meet building regulations and be signed off by building control. Keeping those two approvals distinct matters, and after 30 years working across Redbridge we know how the council treats extensions on these period terraces.
Wanstead homeowners choose GS Renovation because we manage the whole extension, from establishing whether you need planning permission or fall under permitted development, through foundations, steelwork and roofing, to the final decoration. One team, engineer-designed structure, building control sign-off and any party wall notices handled. Thirty years in E11 means we build to suit these terraces, not against them.
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
We price each Wanstead project individually, because the cost of house extensions depends on far more than floor area. After a free survey you receive a clear written breakdown with no hidden extras. Call 07472 424 226 or email info@gsrenovationltd.co.uk. 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.
We will give you an honest timescale for house extensions in Wanstead after surveying your home. Most projects run on a clear weekly programme, and we tell you up front about any lead times on materials or approvals.
Because we manage every trade in-house, your Wanstead project stays consistent and accountable from first fix to finish. Add transparent pricing, full insurance and real aftercare, and it is easy to see why Wanstead clients recommend us.
Many single-storey rear extensions in Wanstead 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 Wanstead'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.
It depends on the property. Many single-storey rear and side-return extensions on Wanstead terraces are permitted development and need no application to Redbridge Council, but double-storey work, boundary proximity or a previous extension can change that. We assess your specific E11 house first, tell you clearly which route applies, and handle the drawings and any application for you.
Absolutely. Our team works right across Wanstead and the E11 area and neighbouring parts of East London. Get in touch on 07472 424 226 to check coverage for your address.
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 Wanstead. 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 Wanstead and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Wanstead.
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