Single and double storey extensions in Edmonton. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Edmonton, from single-storey rear additions to double-storey and wrap-around projects on the Victorian and Edwardian terraces of N9. With more than 30 years in Enfield borough, we handle the groundworks, steelwork, roof and full fit-out, and guide you through whether the work is permitted development or needs planning.

The classic Edmonton project fills in the side return, the narrow strip of yard alongside the original rear closet wing, to square off a cramped galley kitchen into a wide, open kitchen-diner. We dig and pour new foundations tied into the existing terrace, build the walls, and install a steel beam where the old external wall comes out so the upper floors stay supported. A glazed roof or rooflights then bring daylight deep into the plan.
Rear extensions push the ground floor out into the garden and suit the generous back plots on many N9 streets. We manage the groundworks, drainage diversions around existing manholes, the structural openings and the roof as one sequence. Because these terraces adjoin neighbours on both sides, a party wall notice is usually needed where we build up to or along the boundary, and we raise that with you before work starts.
Not every Edmonton extension needs a planning application. Many single-storey rear extensions fall under permitted development if they stay within the size, height and boundary limits, though those rights can be restricted, so we always check the specific property first. Where a design goes beyond those limits, or where you want a double storey or a wrap-around, we prepare and submit a full application to Enfield Council on your behalf.
Either route, the structure still needs building regulations approval, which is separate from planning and covers the foundations, beams, insulation, drainage and fire safety. We are familiar with how Enfield Council handles applications on N9 terraced streets and design to give you the best chance of approval. Getting the correct consents in place before the diggers arrive keeps the project legal and avoids costly changes once the walls are up.
Homeowners across Edmonton pick GS Renovation because one team takes the extension from first drawing to final coat. We advise honestly on permitted development versus a planning application to Enfield Council, handle party wall notices on shared boundaries, and build to building regulations. Backed by 30+ years in N9, you get sound foundations, correct steelwork and a tidy site in an occupied home.
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 Edmonton 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 Edmonton 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 Edmonton. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.
Many single-storey rear extensions in Edmonton 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 Edmonton'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.
Often yes. Many single-storey rear extensions on N9 terraces qualify as permitted development if they stay within the height, depth and boundary limits, but those rights can be removed on some properties, so we check yours first. Larger, double-storey or wrap-around designs usually need a planning application to Enfield Council. Whichever applies, the build still needs separate building regulations approval and probably a party wall notice.
Yes. We work throughout Edmonton and the N9 area, as well as the surrounding parts of North 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 Edmonton. 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 Edmonton and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Edmonton.
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