Single and double storey extensions in Wanstead. Trusted, professional, 30+ years' hands-on experience.
GS Renovation designs and builds extensions across Wanstead, from single-storey rear additions to double-storey and wrap-around projects on the Victorian and Edwardian terraces near Wanstead Park. With 30+ years of experience in E11 and Redbridge, we handle the groundworks, steel beams, roof and full fit-out as one accountable project.

The most popular Wanstead extension fills in the side return beside the rear closet wing, widening a narrow galley kitchen into a bright open-plan space that runs the full width of the house. These terraces were built with generous rear gardens backing towards the park and forest, which usually leaves room for a rear extension as well, giving you a large kitchen-diner opening onto the garden. We dig the foundations, form the steel structure and build the roof to suit the original brickwork.
Because the new opening removes load-bearing walls, a structural engineer sizes the steel beams and building control inspects the work at each stage. Where the extension meets the shared boundary, the Party Wall Act applies and you serve notice on your neighbour in good time. We finish the whole thing, from the screed and underfloor heating to the glazing, plastering and decoration, so you deal with one team from foundations to handover.
Many single-storey rear and side-return extensions in Wanstead fall under permitted development, meaning they do not need a full planning application to Redbridge Council, though the exact limits depend on your property, its plot and whether earlier extensions have used up your allowance. Double-storey work, anything close to a boundary or work on a house affected by an article 4 direction is more likely to need permission, so we assess your specific E11 address before promising anything.
We tell you clearly at the outset whether your project is permitted development or needs planning permission, and we handle the drawings and applications either way. Separately from planning, all the structural building work must meet building regulations and be signed off by building control. Keeping those two approvals distinct matters, and after 30 years working across Redbridge we know how the council treats extensions on these period terraces.
Wanstead homeowners choose GS Renovation because we manage the whole extension, from establishing whether you need planning permission or fall under permitted development, through foundations, steelwork and roofing, to the final decoration. One team, engineer-designed structure, building control sign-off handled. Thirty years in E11 means we build to suit these terraces, not against them.
I had a bathroom refit which I was very pleased with and I then went on to get my kitchen refitted as I was so happy with the way he worked. Even…
We loved working with George and Ibrahim and would highly recommend them. They have done splendid job on our new kitchen refurb which including new…
Really happy with the quality of remedial works carried out by George in putting other previous tradesman work right. He was very helpful, honest and…
FAQ
Only if it covers the same work, and usually it does not. A low house extensions figure for a Wanstead home normally excludes the engineer, the Redbridge Council application or the making good, all of which still have to be paid for at the E11 property. GS Renovation itemises so the comparison is honest. Ask the cheaper Redbridge quotation for the same breakdown. Ring 07472 424 226 and GS Renovation will go through both Wanstead quotations with you. 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.
It depends on the scope, and we will map it at survey. Once we have seen the E11 property, house extensions can be programmed properly for your Wanstead home, including the making good that Edwardian bay-fronted houses with generous ceiling heights and long rear gardens demand. GS Renovation issues that with the quotation. Nothing about a Redbridge timeline is left to be worked out on site. Email info@gsrenovationltd.co.uk with the E11 address and we will programme the Wanstead work properly from the outset.
Properly, because in a terrace it affects everyone. GS Renovation agrees working hours with a Wanstead household before house extensions begins, dust-seals the E11 work area, and leaves the site clean each evening. Waste is removed rather than allowed to accumulate. Full insurance and a named manager on the Redbridge site cover the rest. Ring 07472 424 226 and we will explain the site rules. Full insurance covers every E11 project we run across Redbridge.
It can. The Community Infrastructure Levy applies above 100 square metres of new floorspace, though a residential extension to your own home usually qualifies for relief if it is claimed before work starts. Missing that claim is expensive, so we flag it early on Wanstead projects.
There can be, and we check before any design work begins. Conservation area status, an Article 4 direction or a listing removes permitted development rights at an E11 address, so house extensions may need a full application to Redbridge Council. GS Renovation establishes the position for your Wanstead home first. Building regulations apply regardless of the planning route. Ring 07472 424 226 and we will confirm the designation before any house extensions design work at E11.
It depends on the property. Many single-storey rear and side-return extensions on Wanstead terraces are permitted development and need no application to Redbridge Council, but double-storey work, boundary proximity or a previous extension can change that. We assess your specific E11 house first, tell you clearly which route applies, and handle the drawings and any application for you.
Every postcode in the area, and most of those around it. House extensions work takes GS Renovation across Wanstead, Ilford and the wider East London in a normal month, so an E11 property is routine. Building control goes through Redbridge Council in the usual way. Email info@gsrenovationltd.co.uk and we will book a visit. Nothing is owed for the survey or the quotation. The written quotation normally follows that visit within a few working days.
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 Wanstead. Explore what else we do locally:
Same Service, Nearby Areas
We carry out house extensions across Wanstead and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for house extensions in Wanstead. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.