Single and double storey extensions in Crouch End. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions on Crouch End's Victorian and Edwardian terraces, from rear and side-return additions to full wrap-arounds. With 30+ years of building experience across N8 and Haringey, we handle the foundations, the steelwork, the roof and the fit-out, and guide you through permitted development or a planning application to Haringey Council.

The side return, that narrow strip of land beside the rear closet wing, is the classic Crouch End extension. Filling it in widens a cramped galley kitchen into a bright open-plan space running the full width of the house. We dig new foundations beside the existing wall, allowing for any nearby trees, then support the flank and the floor above on steel beams sized by a structural engineer.
A single-storey rear or side-return extension often falls under permitted development, but this is not guaranteed. Crouch End sits within Haringey, and factors such as an Article 4 direction, a conservation area, the size of the extension or a previous addition can mean a full planning application is required. We check the position for your specific address, prepare the drawings, and apply to Haringey Council where planning permission is needed.
Where a family needs more than a wider kitchen, a double-storey rear extension adds a bedroom or bathroom above the new ground-floor space. On a Crouch End terrace this usually means deeper foundations, careful matching of the yellow London stock brick, and a roof that ties neatly into the existing closet wing. A two-storey addition beyond the modest permitted development limits will generally need planning permission from Haringey Council.
Because these terraces are joined on both sides, party wall matters nearly always arise, whether from excavating close to the boundary or building off a shared wall. We serve the correct notices, install the steelwork and manage the trades from groundworks through to the final decoration. Building regulations approval and inspections run alongside any planning consent, so your extension is both permitted and properly constructed before you move back in.
Homeowners across Crouch End trust GS Renovation to take an extension from first sketch to finished room. We know how N8 terraces are built, we manage the Haringey planning and building control routes, and we handle party wall notices, steelwork and fit-out with one team. Over 30 years of local experience keeps the project on track and tidy.
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
Pricing house extensions in Crouch End comes down to the size of the job, the specification you choose and the condition of the property. Rather than guess, we survey and give you a fixed, itemised quote you can rely on. Call 07472 424 226. 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.
Timescales for house extensions in Crouch End vary with the size and complexity of the job. After our survey we give you a realistic schedule and keep you updated at every stage of the project.
Because we manage every trade in-house, your Crouch End 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 Crouch End clients recommend us.
Many single-storey rear extensions in Crouch End 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 Crouch End'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 your property. Many single-storey rear and side-return extensions in Crouch End are permitted development, but larger or two-storey additions, an Article 4 direction or conservation restrictions can require a planning application to Haringey Council. We assess your specific N8 address, tell you which route applies, and handle the drawings and submission if permission is needed.
We do. GS Renovation covers all of Crouch End and the N8 area and the wider North London. Call 07472 424 226 and we will confirm we work on your road.
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 Crouch End. 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 Crouch End and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Crouch End.
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