Single and double storey extensions in Enfield. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Enfield, working with the generous plots typical of its 1930s and interwar suburban houses in EN1, EN2, EN3, N9, N13, N14 and N21. With more than 30 years behind us, we handle everything from foundations to final fit-out, whether the project runs as permitted development or needs a full planning application to Enfield Council.

The wide plots of Enfield's interwar semis, especially around Southgate, Palmers Green and the streets near Trent Park, suit rear and wrap-around extensions that a tighter inner-London terrace could never take. A single storey rear extension can create a large open-plan kitchen-diner, usually needing a steel beam where the old back wall is removed, while a wrap-around picks up the side passage as well for extra width.
We start with foundations and groundworks sized for the ground conditions and any nearby trees, then build the shell, install the steelwork, and form the roof, whether flat with a lantern rooflight or pitched to match the house. Building regulations govern the structure, insulation, drainage and glazing, and Enfield Council building control inspects the works at each stage through to completion.
Many single storey rear extensions on Enfield's suburban houses fall under permitted development, meaning no planning application is needed provided the size, height and materials stay within the limits and your rights have not been removed. Double storey extensions, anything to the front, work on flats, and homes in a conservation area or with an Article 4 direction usually need a full planning application to Enfield Council, and we help you establish which route applies before you commit.
Because these are semi-detached and terraced houses, a side or rear extension near the boundary normally triggers the Party Wall Act, so your neighbour is served notice in good time. We can arrange drawings and the planning submission, manage building control, handle party wall matters, and then complete the full fit-out, from plastering and electrics to the kitchen, so one team carries the whole project.
Enfield owners come to GS Renovation because we run the extension end to end: foundations, steel, roof, party wall notices and a full internal finish. We know which projects on these interwar plots are permitted development and which need an application to Enfield Council, and we keep the site tidy and the timeline honest across 30-plus years locally.
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 Enfield 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.
A straightforward Enfield project can be done in a couple of weeks, while a larger house extensions with structural work runs longer. We set out a realistic, stage-by-stage programme before we begin so there are no surprises.
With more than three decades of hands-on trade experience behind us, GS Renovation is a trusted choice for house extensions in Enfield. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.
Many single-storey rear extensions in Enfield 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 Enfield'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.
It depends on the property. Many single storey rear extensions on Enfield's suburban plots are permitted development and need only building regulations, but double storey, front, flat or conservation-area work usually needs a planning application to Enfield Council. Every extension still needs building control sign-off for the structure and insulation. We confirm your exact position before any work begins.
Absolutely. Our team works right across Enfield and the EN1 area and neighbouring parts of North 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 Enfield. 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 Enfield and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Enfield.
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