Single and double storey extensions in Forest Gate. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions throughout Forest Gate, from single-storey rear additions to full wrap-arounds on the Victorian and Edwardian terraces around West Ham Park and towards Stratford. Drawing on 30+ years in E7, we take care of foundations, steelwork, roofing and the full fit-out as one continuous project.

The classic Forest Gate extension fills the side return, the narrow alley of dead space beside the rear closet wing that these terraces were built with. Widening the kitchen into that strip transforms a cramped galley into a proper open-plan kitchen-diner running the full width of the house. It usually needs a steel beam where the old external wall is removed, sized by an engineer and signed off under building regulations.
We dig and pour the foundations, often deeper than expected because of tree roots and clay in the E7 gardens, then build up in matching London stock brick so the addition reads as part of the original house. Rooflights or a lantern bring daylight into the middle of the plan, which these deep terraces badly lack. Rainwater, drainage and any existing manholes are all planned in from the start.
Many single-storey rear and side-return extensions in Forest Gate fall under permitted development, meaning they can proceed without a full planning application, though size limits and boundary distances apply. Larger projects, double-storey additions, or anything affecting the front elevation usually need planning permission from Newham Council. We assess your specific property honestly and tell you which route applies before you commit, rather than assuming.
Whichever route you take, the structure itself is controlled under building regulations, not planning, so the beams, foundations and insulation are inspected separately. Where your extension is built up to or along the boundary with next door, the Party Wall Act comes into play and notices are served. We handle these strands together so the drawings, the council submission and the party wall matters all move in step.
Forest Gate families choose GS Renovation because we build extensions that suit E7's terraced plots, respecting the side return, the closet wing and the neighbours on both sides. One team manages groundworks, steel, roof and fit-out, and we are straight with you about permitted development versus a planning application, so there are no nasty surprises with Newham Council.
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 Forest Gate 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 Forest Gate 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.
With more than three decades of hands-on trade experience behind us, GS Renovation is a trusted choice for house extensions in Forest Gate. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.
Many single-storey rear extensions in Forest Gate 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 Forest Gate'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 size and your property. Many single-storey rear and side-return extensions in Forest Gate qualify as permitted development within the set limits, so no planning application is needed. Larger or double-storey schemes usually require permission from Newham Council. Either way the structure is signed off under building regulations. We check your exact case before any work starts and advise the correct route.
Yes. We work throughout Forest Gate and the E7 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 Forest Gate. 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 Forest Gate and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Forest Gate.
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