Kitchen Extensions Wanstead

Wanstead's houses divide between terraces, at 36% of homes, and semi-detached or detached houses, at 32%, and the house type decides the kitchen extension: a side infill or wraparound on a terrace, a rear or wraparound extension on a semi. Redbridge Council is the planning and building control authority for Wanstead, and its Housing Design SPD sets the depth, height and eaves figures a new kitchen has to sit within. We build the shell, the steel into the back of the house, the drainage and the kitchen itself as one programme.

In Wanstead, a rear kitchen extension of about 30 square metres typically costs £45,000 to £97,500 excluding VAT, or £60,000 to £100,000 for a side return (indicative London ranges, Resi, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Wanstead: the structural engineer we appoint designs the foundations and steel, we build the room and fit the kitchen, and a registered electrician certifies the electrics.

How deep and how tall a Wanstead kitchen extension can go

The depth is set first, because Redbridge's Housing Design SPD gives a maximum single-storey rear extension depth of 3.5m for terraced and semi-detached houses and 4.5m for detached houses. For a Wanstead semi that means planning the new kitchen, the island and the dining end inside 3.5m of new floor, then borrowing the rest of the length from the old back room once the rear wall comes out. The drawings should show that figure before a single unit is chosen.

Height follows. The same SPD says flat roof extensions should generally be 3m high, with any parapet wall no more than 150mm. That fixes the build-up of joists, insulation and membrane, and so the finished ceiling height inside. Where a roof lantern or roof lights go in, the upstand has to fit within that envelope too, so we set out the kerb levels with the designer before the roof is framed rather than on the day the glazing arrives.

Housing in Wanstead

Take the 4,680 or so homes the valuation list gives Wanstead: 31% flats, 69% houses, 43% from before 1919, 20% interwar and 36% post-war. 36% of homes here are terraced; a terrace kitchen extension in Wanstead starts in a narrow side return.

Side returns and wraparounds on Wanstead's terraces and semis

A wraparound or side infill kitchen in Wanstead is shaped by the eaves line. Redbridge asks for wrap-around and rear projection infill extensions to have low eaves and shallow pitched roofs, with eaves kept to 2.4m above ground level. On a terrace with a closet wing, the infill usually runs along the boundary wall, so the low eaves face the neighbour and the extra height sits towards your own house, where the roof pitch rises. Building on or against that boundary wall is party wall work: you, as building owner, serve the notices, and Redbridge treats the Party Wall Act as a civil matter it takes no part in.

That shallow pitch matters for the finish. Roof lights on a low slope need the right flashing kit and a minimum pitch from the manufacturer, and the gutter at 2.4m sits close to the boundary, so the rainwater has to discharge on your side. We agree the gutter route, the fall to the existing gully and the glazing make with you at the drawing stage, because each one changes what gets ordered and when it arrives on site.

Conservation areas and Article 4 around Wanstead Park

Inside a conservation area the permitted development route narrows, so check which side of the boundary your street falls before you commit to a kitchen layout or order any glazing. Nationally, all side extensions on Article 2(3) designated land, such as a conservation area, require householder planning permission. The Wanstead Grove Conservation Area Appraisal and Management Plan says the same for side extensions and adds that all two storey rear extensions need planning permission as well.

Aldersbrook, beside Wanstead Flats, goes further. The Aldersbrook and Lake House Conservation Area Article 4 direction removes permitted development for enlargement or alteration of a dwellinghouse affecting its front, side or rear elevations. A single-storey kitchen that would be permitted development elsewhere needs a planning consent there, and the decision date becomes the start date for our programme. Trees count too: in a Redbridge conservation area, any tree with a trunk diameter over 75mm is automatically protected, and works to one need notice to Redbridge first, so a tree near the new rear wall can move a footing.

Steel, drainage and inspections on a Wanstead kitchen build

Opening the back of a Wanstead house into the new kitchen means a beam or a frame, and Redbridge's site inspection booking list includes foundations or excavations and lintols or beams or RSJs among the inspection types. The structural engineer we appoint specifies the steel, we install it, and the inspector sees the trench and the bearings before either is covered. Where Redbridge is the building control body, it offers same day inspections if booked before 10am, so an early booking keeps the concrete lorry on the right day.

Drainage usually decides the kitchen layout more than the units do. The sink and dishwasher want to sit near the existing stack or a new connection, and a run under the new floor needs falls, access points and sometimes a build-over arrangement with the water company. We expose the existing run first, confirm levels, then fix the sink wall. The kitchen fitting, tiling and worktop template follow on in the same programme once the floor screed has dried.

• Island units with power and waste run through the slab
• Sliding, bifold and steel-framed glazed doors to the garden
• Soil stack and gully rerouting beneath the new floor

VOA Council Tax stock of properties, March 2025, for Wanstead and Wanstead Flats. Counts rounded by the VOA.

When comparing kitchen extensions in Wanstead with other work, it helps to read kitchen renovation in Wanstead, kitchen extensions across Redbridge, fitting the kitchen itself, party wall notices for a kitchen extension, kitchen extensions anywhere in London and Bifold or Sliding Doors.

The GS Renovation Difference in Wanstead

We run a kitchen extension as a single job, from the footings and the steel through to the last cabinet door, so there is one programme and one team on site rather than a builder handing over to a kitchen fitter. The structural engineer we appoint sizes the beam, and we build to the consent and the drawings you have. You get a written quotation after a site visit, and the founder, with more than three decades of hands-on building work, is involved in how the job is run.

• Screed left to dry before the kitchen floor finish goes down
• Free follow-up visit after completion if anything needs attention
• New floor level matched to the existing house, with no step at the opening

Reviewed jobs near Wanstead

1 MyBuilder review from Wanstead, with each customer's own job title:

• Install new kitchen, plumb appliances & re-tile walls, Wanstead, 27 Jul 2022 (5 out of 5)

Read all 31 on our reviews page.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.