Single and double storey extensions in Stratford. Trusted, professional, 30+ years' hands-on experience.
GS Renovation builds house extensions across Stratford and the wider E15 area, working on the Victorian terraces around Forest Gate as well as homes near the Queen Elizabeth Olympic Park. With more than 30 years in Newham, we manage the groundworks, steel, roof and full fit-out of single and double storey extensions from first drawing to final coat.

The Victorian and Edwardian terraces in E15 suit the extensions we build most often: a rear extension across the back, a side-return infill along the narrow alley, or a wrap-around that combines both. We dig and pour the foundations, build up the walls and drop in the steel beam that carries the original rear wall once it opens into the new space. The result is the bright open-plan kitchen-diner that terraced plots rarely have otherwise.
Whether your extension is permitted development or needs a full planning application depends on the property. Many single storey rear extensions fall under permitted development, but flats, converted buildings and anything in a conservation setting usually need permission from Newham Council. We check the rules for your address first, prepare the drawings and submit the application if one is required, so nobody is caught out after the footings go in.
Extending a warehouse conversion or a new-build apartment near the Royal Docks is far more constrained than extending a house. Structural change is limited, permitted development rights generally do not apply to flats, and the freeholder controls the exterior of the building. Where an extension or alteration is possible at all, it runs through the freeholder's licence to alter and the managing agent, alongside any planning application to the council.
For the terraced houses that make up much of Stratford's older stock, party wall matters come into play the moment you build near or onto a shared boundary. We serve the notices, agree the schedule of condition with the neighbours and keep the works within what has been agreed. Building control then inspects the foundations, the steel and the drainage as the extension goes up, entirely separately from the planning side.
Stratford homeowners choose GS Renovation because we run the whole extension under one roof: groundworks, steelwork, roofing, party wall notices and the fit-out of kitchen, bathroom and services. We tell you honestly whether your project is permitted development or needs a planning application to Newham Council before any commitment. Thirty years locally means fewer surprises and a build that lasts.
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 Stratford 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.
Most house extensions projects in Stratford 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.
Because we manage every trade in-house, your Stratford 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 Stratford clients recommend us.
Many single-storey rear extensions in Stratford 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 Stratford's homes are warehouse-conversion and new-build properties, and we renovate them regularly. We plan each house extensions around their particular characteristics, such as concrete or steel frames, building-management rules and modern services, so the result suits the building and meets building control.
Usually yes. A single storey rear extension on a terraced house in E15 often falls under permitted development, though limits on depth and height apply and a full planning application to Newham Council is sometimes needed. Building control approval is always required for the foundations and steel, and a party wall notice is needed where you build against a neighbour's wall. We confirm the exact position for your address.
Yes. We work throughout Stratford and the E15 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 Stratford. 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 Stratford and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Stratford.
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