Single and double storey extensions in Peckham. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Peckham, working with the bay-fronted Victorian and Edwardian terraces that fill SE15. With over 30 years in Southwark, we handle single and double storey rear extensions, side-return infills and wrap-arounds, from the foundations and steelwork through to the full fit-out, all under one accountable team.

The typical Peckham terrace has a narrow side return running alongside the rear closet wing, and infilling it is one of the most effective ways to widen a cramped kitchen. We dig and pour new foundations against the existing wall, tie in the drainage and set a steel beam where the old outside wall comes out. The result is a wide, bright kitchen-diner that suits how families in SE15 actually live.
Combining a side-return infill with a modest rear extension gives even more space without swallowing the whole garden. We match brickwork to the Victorian stock where it shows, form a flat or pitched roof with rooflights over the darker middle of the plan, and carry the project through to plastering, electrics and decoration. You deal with one team from groundworks to the finished room.
Whether your Peckham extension is permitted development or needs a full planning application depends on the property. Many single storey rear extensions on a standard SE15 terrace fall under permitted development, but corner plots, flats, articles of local restriction or anything near a conservation area can require an application to Southwark Council. We assess your specific house and tell you honestly which route applies before you commit.
Either way, the structural work needs building regulations approval, and shared walls bring in the Party Wall Act. Because Peckham terraces sit tight against their neighbours, digging foundations near the boundary or building off a party wall almost always means serving notice. We size the steelwork, arrange building control inspections and help you handle the party wall notices so the whole job stays properly compliant.
Peckham homeowners pick GS Renovation because we build extensions that respect the terrace they attach to, from foundations and steel to the final coat of paint. We advise clearly on permitted development versus a Southwark Council application, manage building control and party wall notices, and keep one team accountable throughout. Thirty plus years in SE15 sits behind every project.
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 Peckham 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.
Timescales for house extensions in Peckham 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 Peckham 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 Peckham clients recommend us.
Many single-storey rear extensions in Peckham 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 Peckham'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 specific property. Many single storey rear extensions on a standard SE15 terrace are permitted development, but flats, corner plots and homes affected by local restrictions or a nearby conservation area often need a full application to Southwark Council. We assess your house first and tell you which route applies. Whichever it is, the build still needs building regulations approval.
Yes, Peckham is one of our core areas. We work on every street and the SE15 area and across the wider South London, so wherever your home is, call 07472 424 226 and we will confirm we can help.
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 Peckham. 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 Peckham and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Peckham.
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