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. You 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 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.
We loved working with George and Ibrahim and would highly recommend them. They have done splendid job on our new kitchen refurb which including new…
George was very friendly and helpful from start to finish. He worked really hard to ensure our kitchen was installed to a high standard and was…
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
FAQ
Variation almost always comes from what has been left out. GS Renovation prices house extensions after a survey at the E15 property, covering structure, trades, approvals and reinstatement, so the total looks higher than a quote covering half of it. A Stratford homeowner comparing like with like usually finds the gap narrows. That is worth doing before anyone starts work in Newham. Ring 07472 424 226 and GS Renovation will go through the E15 quotation with you line by line. 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.
It depends on scope, and we will not pretend otherwise on the phone. Once the E15 survey is done GS Renovation can give a Stratford homeowner real dates for house extensions, including the Newham Council inspection points. Material lead times are ordered against that programme early. Ring 07472 424 226 and we will describe what a converted warehouse and riverside property usually needs. Nothing about the Stratford dates is guessed once the free survey at E15 is done.
It is what we do week in, week out across Stratford and East Ham. GS Renovation has carried out house extensions on this type of stock repeatedly, which is why the E15 survey takes account of things that appear on no drawing. The 31 public MyBuilder reviews cover the same work. Ring 07472 424 226 and we will describe recent Newham projects in detail. Insurance and company details are provided at the E15 survey in Stratford.
Permitted development allows building up to the boundary at single storey, subject to height limits at the eaves, but foundations near a neighbour's structure engage the Party Wall Act. On a Stratford plot we check both the planning route and the party wall position before design.
More demanding in places, but not harder for a team that works on them constantly. House extensions at an E15 address of that age needs proper investigation before design and more care in the finishing afterwards. GS Renovation allows for both in the Stratford programme. The structural stage itself is usually no more complex than in a newer Newham property. Ask on 07472 424 226 how house extensions runs on a comparable E15 house in Newham.
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.
We do not set one. What decides whether GS Renovation takes a house extensions job at an E15 address is whether we can do it properly and when, not the size of the invoice. Small work in Stratford often turns into a longer relationship. Call 07472 424 226 and we will tell you honestly if another Newham trade suits you better. The survey costs nothing regardless. A modest job at E15 often becomes a longer Newham relationship.
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:
Same Service, Nearby Areas
We carry out house extensions across Stratford and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for house extensions in Stratford. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.