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House Extensions Lambeth

Single and double storey extensions in Lambeth. Trusted, professional, 30+ years' hands-on experience.

GS Renovation designs and builds extensions across Lambeth, adding space to period homes from Streatham to Kennington. With 30+ years working on Georgian, Victorian and conservation-area properties in SW2, SW16 and SE24, we handle foundations, steelwork, roofing and fit-out, and guide you through whether your project is permitted development or needs a planning application to Lambeth Council.

House Extensions in Lambeth, London by GS Renovation
House Extensions by GS Renovation in Lambeth.

Rear and side-return extensions in Lambeth

The classic Lambeth extension fills the side return of a Victorian terrace or wraps around the rear closet wing, turning a dark galley kitchen into an open living space that looks onto the garden. Around Brockwell Park and Clapham Common we dig and pour new foundations, tie into the existing solid walls, and install steel beams so the back of the house can open up fully. Everything is built to current building regulations.

On the larger Georgian and Regency houses of Kennington and Vauxhall we build double storey and full width additions where the plot allows. Because many of these homes are listed or within conservation areas, external work often needs planning permission from Lambeth Council as well as building control approval. We prepare the drawings, submit the application, and manage the party wall notices where the extension runs up against a neighbour.

Permitted development or planning in Lambeth

Not every Lambeth extension needs planning permission. A modest single storey rear extension on an unlisted house may fall under permitted development rights, letting us start sooner. But those rights are restricted or removed on listed buildings and within many of the borough's conservation areas, which cover large parts of Clapham, Brixton and Streatham. We assess your property early and tell you honestly which route applies before any commitment.

Where a full application is required, we handle the process with Lambeth Council and coordinate the structural engineer, so the design that gets consented is the one we can actually build. Party wall matters are common on the borough's tight terraced plots, so we serve notices in good time. From groundworks to the final coat of paint, one team keeps your SW9 or SE11 extension moving.

  • Planning permission and permitted development
  • Foundations, groundworks and steel frames
  • Full fit-out, finishing and making good
  • Architectural drawings and structural coordination
  • Single and double storey extensions
Service areaLambeth · SE11, SE24, SE27 and SW2
Local authorityLambeth Council
Part ofSouth London (Inner London)
Typical homesGeorgian and Regency townhouses, many listed or within conservation areas
Also covered nearbyWandsworth, Southwark, Croydon and Merton

Trusted House Extensions in Lambeth

Lambeth homeowners choose GS Renovation because we manage the whole extension, the planning route, the foundations, the steel and the fit-out, as a single accountable project. We know how Lambeth Council treats conservation areas and listed homes, and we build to last. With 30+ years across SW2, SW8 and SE27, you deal with one experienced team from first drawing to handover.

  • Free, no-obligation quotations
  • Over 30 years of hands-on experience
  • Dedicated project management
  • Fully insured and guaranteed work
  • Building control and planning support
  • Clean, tidy and reliable tradespeople
30+ YearsExperience
Fully Insured& Guaranteed
500+ ProjectsCompleted
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

★★★★★ 4.9 average from 31 verified reviews on MyBuilder

★★★★★
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.
OscarCrofton Park, London · via MyBuilder
★★★★★
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.
KathWood Green, London · via MyBuilder
★★★★★
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!
Adil KhanWoolwich, London · via MyBuilder
Read all 31 reviews on MyBuilder

FAQ

Frequently Asked Questions about House Extensions Lambeth

How much does house extensions cost in Lambeth?

Pricing house extensions in Lambeth 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.

How long does house extensions take in Lambeth?

How long house extensions takes in Lambeth depends on the size of the job, but we always agree a programme before starting and stick to it, keeping you informed from the first day to the last.

Why choose GS Renovation for house extensions in Lambeth?

With more than three decades of hands-on trade experience behind us, GS Renovation is a trusted choice for house extensions in Lambeth. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.

Do I need planning permission for an extension in Lambeth?

Many single-storey rear extensions in Lambeth 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.

Do you work on period, Georgian and listed homes in Lambeth?

Yes. A large share of Lambeth'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.

Does my Lambeth extension need planning permission or just building regs?

It depends on the property. A modest single storey rear extension on an unlisted house may be permitted development, needing only building regulations. But if your home is listed or sits in one of Lambeth's conservation areas, which cover much of Clapham and Brixton, you will likely need planning permission from Lambeth Council too. We check the position for your address before you commit.

Do you cover all of Lambeth?

We do. GS Renovation covers all of Lambeth and the SE11 area and the wider South London. Call 07472 424 226 and we will confirm we work on your road.

Every Service, One Team

More GS Renovation Services in Lambeth

The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Lambeth. Explore what else we do locally:

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House Extensions Near Lambeth

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Ready to Start Your Lambeth Project?

Contact GS Renovation today for a free, no-obligation quote for house extensions in Lambeth.

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Call 07472 424 226