Single and double storey extensions in Camberwell. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Camberwell, adding space to the Georgian and Victorian townhouses of SE5 without losing their period character. With over 30 years working throughout Southwark, we handle groundworks, steelwork, roofing and fit-out as one project, and guide you through whether your plans are permitted development or need a full planning application.

The most popular extension on a Camberwell townhouse fills in the side return, widening a narrow Victorian kitchen into a bright open-plan space, or extends across the rear into the garden. We dig and pour foundations to suit SE5's ground conditions, install steel beams where the back wall is removed, and tie the new roof and walls into the existing period structure so the join looks original rather than added on.
Double storey and wrap-around extensions add bedrooms and bathrooms above the new ground floor, and we manage the whole build from groundworks to final decoration. Because many Camberwell homes sit close to their neighbours, party wall matters usually apply, and we serve the necessary notices early so nothing stalls on site. Every extension is built to building regulations and inspected by Southwark Council building control at each key stage.
Some Camberwell extensions fall under permitted development, meaning you can build within set limits without a full planning application. Others need planning permission from Southwark Council, particularly where the property is listed, sits within a conservation area, or where the size or design goes beyond permitted limits. We assess your townhouse honestly, tell you which route applies, and prepare the drawings and applications accordingly so you know where you stand before committing.
Because so much of SE5's Georgian and Regency stock is listed or conservation-protected, exterior alterations often face closer scrutiny than in newer suburbs. We design extensions that respect the roofline, brickwork and proportions the council cares about, which smooths approval. Whichever route your project takes, the structural work still needs building control sign-off, and we coordinate planning, party wall notices and building regulations together so nothing holds up the build.
A Camberwell extension touches planning, party walls, structure and finish all at once. GS Renovation manages every strand with 30+ years of Southwark experience, from foundations and steel to the final coat of paint. You deal with one accountable team that understands SE5's period stock, its conservation constraints and exactly what Southwark Council expects to see.
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
There is no fixed price for house extensions in Camberwell, because so much depends on your property and what you want to achieve. We survey first, then provide a transparent written quotation. Contact GS Renovation on 07472 424 226 for a free estimate. 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 Camberwell 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 Camberwell. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.
Many single-storey rear extensions in Camberwell 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 Camberwell's homes are period, Georgian and listed properties, and we renovate them regularly. We plan each house extensions around their particular characteristics, such as conservation and listed-building rules, solid walls and original period features, so the result suits the building and meets building control.
It depends on your property. Many rear and side-return extensions in Camberwell are permitted development within set size limits, but if your home is listed, sits in a conservation area, or you want to build larger, you will need planning permission from Southwark Council. We assess your townhouse, confirm the route and handle the application. Either way, the structural work needs building control sign-off.
Yes. We work throughout Camberwell and the SE5 area, as well as the surrounding parts of South 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 Camberwell. 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 Camberwell and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for house extensions in Camberwell.
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