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House Extensions Battersea

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

GS Renovation designs and builds extensions across Battersea, working with the bay-fronted Victorian and Edwardian terraces that define SW11. From side-return infills near Clapham Common to rear extensions backing onto quiet streets by Battersea Park, our 30+ years of local building means foundations, steelwork, roofing and fit-out are handled by one accountable team.

A rear extension under construction by GS Renovation, with cavity blockwork built up and the damp proof course laid
Blockwork to damp proof course level, with the membrane dressed over before the next lift goes on.

Side-return extensions in Battersea terraces

The classic Battersea extension fills in the side return, that narrow strip of ground alongside the rear closet wing, to widen a cramped galley kitchen into a bright open-plan space. Because the return sits tight against the boundary, we underpin or form new foundations carefully, install steel beams to carry the existing rear wall, and often add a glazed roof to pull light deep into the plan.

These terraces sit close to their neighbours, so the Party Wall Act almost always applies where we build off or near a shared wall. You serve the notices, protect the adjoining property and sequence the groundworks to keep disruption down. The result opens up the ground floor of a period SW11 house without losing the proportions and features that make these homes worth extending.

Planning and permitted development in SW11

Some extensions in Battersea fall under permitted development, meaning you can build within set size and height limits without a full planning application. Others need planning permission from Wandsworth Council, particularly larger rear or wrap-around builds, anything affecting the front elevation, or homes within a conservation area or with an article 4 direction. We assess your specific house before committing to a route.

Whichever path applies, the structural and building regulations side is separate and always required. Foundations, steel beams, drainage, insulation and fire safety are all inspected by building control. We advise honestly on whether your Battersea project is likely to be permitted development or need an application, help with drawings, and build to the approved design so the finished extension passes inspection and adds lasting value.

  • Full fit-out, finishing and making good
  • Single and double storey extensions
  • Roof works and structural alterations at roof level
  • Planning applications and permitted development assessments
  • Building control inspections at foundation, damp course and steel stages
Service areaBattersea · SW11
Local authorityWandsworth Council
Part ofSouth West London (Inner London)
Typical homesVictorian terraces and riverside apartments
Also covered nearbyPutney, Balham, Tooting and Wandsworth

Trusted House Extensions in Battersea

Homeowners across Battersea choose GS Renovation because we take an extension from first sketch to final coat with one team. We know the side returns, closet wings and party walls of SW11 terraces, we handle council and building control, and our 30+ years mean the groundworks and steelwork are done right the first time.

  • Foundation depth set after trial holes, drains and trees are checked
  • Party Wall notices served for excavation near a neighbour's wall
  • Photographs kept at each stage for your records
  • A written scope and programme agreed before work starts
  • Straight advice on what is and is not worth spending money on
  • Paperwork and certificates handed over for when you sell
30+ YearsFounder's experience
Fully Insured5 year guarantee
4.9 / 531 MyBuilder reviews
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

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

★★★★★
Excellent service. George's knowledge and skills are the best in the market. He knows what he is doing, does really high quality work, gives good…
habibazamChigwell · via MyBuilder
★★★★★
George is a very hard working builder, and has done a fantastic job on replacing my Bathroom. His attention to detail was great and I wouldn't…
manders_53St Albans · via MyBuilder
★★★★★
What can I say!!! George is an extremely lovely man his workmanship is second to none, he has an excellent eye for detail and nothing was to much…
steven62759Waltham Cross · via MyBuilder
Read all 31 reviews

FAQ

Frequently Asked Questions about House Extensions Battersea

Which parts of a house extensions project in Battersea cost the most?

Labour is the biggest line on almost every Battersea project. Materials for house extensions are relatively predictable, but the days on site at SW11 depend on access, condition and how many trades must follow each other. GS Renovation sequences them to avoid idle time, which is the practical way to control the cost. The Wandsworth quotation shows where the hours go. Ring 07472 424 226 and GS Renovation will describe the sequence planned for your SW11 home. 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 much time does building control sign-off add to house extensions in Battersea?

Less than most people expect, because it runs alongside the work. GS Renovation submits the house extensions application, books the Wandsworth Council inspections and attends them at your SW11 property, so the Battersea programme absorbs them. The one thing that does add time is a full plans approval, which we advise on where a late Victorian and Edwardian structure warrants the certainty. Ring 07472 424 226 and GS Renovation will advise which route suits an SW11 home in Battersea.

Do you produce the structural calculations for house extensions in Battersea?

No, and no contractor should. GS Renovation appoints and coordinates a structural engineer where house extensions at your SW11 property requires a design, then builds to their specification and has it inspected by Wandsworth Council. The calculations are the engineer's professional responsibility. Any builder in Battersea claiming to produce them in-house is worth questioning closely. Ring 07472 424 226 and we will explain how a Wandsworth appointment works. The calculations belong to you and to the Wandsworth record.

Do I need a party wall agreement to extend in Battersea?

Usually, if you are excavating near a neighbour's foundations or building on the line of junction, both common on Battersea plots. Notice is served before work starts and a schedule of condition protects both parties. We prepare the paperwork for your SW11 address.

Can you handle house extensions in a late Victorian and Edwardian property in Battersea?

We can, and we would tell you early if we could not. House extensions in Edwardian bay-fronted houses with generous ceiling heights and long rear gardens occasionally runs into a structure that will not do what the owner hoped, and finding that out at the SW11 survey is far better than on site. GS Renovation is honest about it before a Battersea client commits. The visit is free either way. Wandsworth Council building control is coordinated by GS Renovation on every house extensions project in Wandsworth.

Will my Battersea rear extension need planning permission or is it permitted development?

It depends on the property. Many single-storey rear extensions on Battersea terraces qualify as permitted development within size limits, but larger builds, wrap-arounds, or homes in a conservation area usually need planning permission from Wandsworth Council. Either way, building regulations approval is separate and always required. We assess your house and advise on the correct route before we start.

Is there a minimum job size for house extensions in Battersea?

There is none, and it is worth asking even if the job feels too small. House extensions enquiries across Battersea range from a single opening to a whole-house programme, and GS Renovation quotes both on the same basis. The SW11 visit costs nothing and carries no obligation. Email info@gsrenovationltd.co.uk with a description and some photographs. Building control still goes through Wandsworth Council where the work requires it. Small house extensions work at SW11 is quoted the same way.

Every Service, One Team

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