Kitchen Extensions East Ham
Rear, side return and wraparound kitchen extensions in East Ham, the room, the services and the kitchen built as one job.
- Rated 4.9 from 31 reviews on MyBuilder
- London guide: £45,000 to £97,500
- Free site survey, itemised quote
A kitchen extension on an East Ham house is a terrace job. 57% of homes here are terraced houses and only 1% are semi-detached or detached, so the choice is a side return infill beside the back addition, a single-storey rear extension across the garden end, or both. 41% of homes are flats, and a flat has no householder permitted development rights, so those schemes start with planning. We build the structure, the steel into the house and the new kitchen in one programme.
In East Ham, 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 East Ham: 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.
Price guide
| Work | Indicative London range |
|---|---|
| Rear kitchen extension, about 30 square metres, ex VAT | £45,000 to £97,500 |
| Side return kitchen extension, standard to high specification | £60,000 to £100,000 |
| Wraparound kitchen extension, standard to high specification | £80,000 to £130,000 |
| Side return build rate, per square metre of new floor | £2,400 to £3,200 |
| Kitchen supplied and fitted within the extension | £5,000 to £14,000 |
| Structural engineer's fee | £950 to £2,500 |
Indicative London ranges (Resi, MyBuilder and Checkatrade, 2026), not a quotation. Prices checked September 2026. Full breakdown: Extension Cost and Planning Guide.
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Side return or rear extension on an East Ham terrace
On an East Ham terrace the choice is usually between filling the side return, going out from the back wall, or doing both as a wraparound. The side return is the narrow strip beside the rear addition of a Victorian or Edwardian terrace, and filling it turns a galley kitchen into a room wide enough for an island or a table. A rear extension adds depth instead, which suits a house where the side strip is already built over.
The permitted development limits are set nationally. A single-storey rear extension on a terraced house can go three metres beyond the original rear wall, or up to six metres through the prior approval process outside designated land, and it cannot be more than four metres high. Measure from the original rear wall, not from a later addition. If an earlier owner already extended, that depth counts against the allowance, so the drawings need the history of the house before the design is fixed.
Housing in East Ham
Around 15,490 homes make up East Ham on the valuation list; 41% are flats and 59% houses, and 64% date from before 1919, 6% from between the wars and 30% from after 1945. 57% of homes here are terraced; a terrace kitchen extension in East Ham starts in a narrow side return.
When an East Ham kitchen extension needs planning permission
An East Ham kitchen extension needs planning permission when it goes past the permitted development limits, when the home is a flat, or when it is a side extension on a house in a conservation area. Newham has nine conservation areas, and one of them is the East Ham conservation area in E6. On that kind of designated land every side extension needs householder planning permission, so a side return infill there cannot rely on permitted development at all.
If you are applying, Newham's Altering and Extending your Home SPD lists the documents that are mandatory for every householder application at the point of submission. Read it before the designer starts, because an application missing one of those documents stalls at validation and the build date moves with it. Conservation area rules also reach smaller items, so a change to windows or doors can need permission there too. Trees in a conservation area garden are protected above a set size, which matters for foundations near the boundary.
Drains and building control under an East Ham extension
The drain run is the first thing to check behind an East Ham terrace, because a shared sewer can cross the back of the plots right where the kitchen is going. Newham says an extension over a sewer needs a full plans application, since a building notice is not suitable for it. That route means scale plans, specifications and structural calculations go to Newham Building Control, and a decision comes within five weeks, or two months by agreement.
Build that wait into the programme rather than hoping for the quicker notice route. Where the drain can be diverted or the footprint kept clear of it, the paperwork gets simpler, so a CCTV survey of the run before the drawings are final is worth commissioning. Newham also has to be told when the extension is deemed commenced, which is when the foundations are in and the lowest floor structure is complete, so we plan the dig and slab with that notification in mind.
Steel, roof glazing and the kitchen fit in East Ham
Opening the back of an East Ham terrace into the new kitchen means taking out the rear wall and often the side wall of the back addition, so the load above has to be picked up on steel. The structural engineer we appoint sizes the beams and padstones, and we prop, cut out and install to that design. Bearing steel on the party wall, or building on the boundary line, brings in the Party Wall etc. Act, and you as building owner serve the notices before work starts.
A long narrow terrace kitchen needs daylight from above, so roof lights or a glazed strip along the party wall side carry the daylight. We fix the roof light positions before the ceiling joists go in, then run extract ducting, the waste runs and the electrical first fix. The kitchen itself is fitted by the same team once the floor screed has dried, so there is no gap between the builder leaving and the kitchen fitter arriving in your East Ham home.
- Boiler relocation and flue changes on the enclosed rear wall
- Foundations, drainage and slab with the kitchen services cast in
- Kitchen-diner layouts planned before the foundations
VOA Council Tax stock of properties, March 2025, for all 5 statistical areas in East Ham. Counts rounded by the VOA.
The GS Renovation Difference in East Ham
We run the kitchen extension as one job from the ground up to the worktops, so the drainage, steel, roof lights and kitchen fit are planned in one sequence. You get one programme, with the building control stages and the kitchen delivery booked against the same dates. The structural engineer we appoint designs the steel, and we build to that design and to your approved drawings. Our founder has spent decades on the tools, and he stays involved from survey to handover.
- Building control and Part P certificates handed over together at the end
- One point of contact on the phone, not a call centre
- Old kitchen kept in use until the new shell is weathertight
Giorgio is an excellent and intelligent workman, and with very reasonable prices! He installed a kitchen extractor fan in a complicated situation…
George was very friendly and helpful from start to finish. He worked really hard to ensure our kitchen was installed to a high standard and was…
My husband and I are extremely pleased with the work. The standard of the work is outstanding and Saiid has a great eye for detail and will not leave…
FAQ
Frequently Asked Questions about Kitchen Extensions East Ham
Why do kitchen extensions quotes in East Ham vary so much?
Variation in kitchen extensions quotes across East Ham almost always comes from what has been left out. GS Renovation prices structure, trades, approvals and reinstatement after an E6 survey, so the total can look higher than a quote covering half of it. The honest range is £45,000 to £97,500 excluding VAT for a rear kitchen extension of about 30 square metres (indicative), and whether the steel over the new opening can sit flush decides how high the wall units beneath it can go, which a quote without a survey cannot know.
How far can an East Ham terrace be extended without planning permission?
Three metres beyond the original rear wall is the permitted development limit for a single-storey rear extension on a terraced house. Through the prior approval process that can rise to six metres, as long as the house is not on designated land such as a conservation area. The extension also cannot be more than four metres high, and the other permitted development conditions still apply. Anything past those limits needs a planning application.
Can the kitchen of a ground floor flat in East Ham be extended?
Yes, but only with planning permission, because householder permitted development rights apply to houses and not to flats or maisonettes. You will normally also need the freeholder's consent under the lease before any structural work starts. Plan for both in parallel so the building programme is not held up waiting for one of them.
Does a side return extension in the East Ham conservation area need permission?
Yes. All side extensions on designated land such as a conservation area need householder planning permission, and the East Ham conservation area in E6 is one of Newham's nine. Your designer should prepare the application with the materials and roof form that fit the street, and we build to whatever is approved.
What happens if a sewer runs under an East Ham back garden?
Your extension then needs a full plans application with Newham Building Control, because Newham says a building notice is not suitable for an extension over a sewer. The water company may also need to agree a build-over. We ask for a CCTV drain survey early so the design either avoids the sewer or allows for the approval it needs.
How long does Newham Building Control take to approve extension plans?
Newham makes a decision on a full plans application within five weeks of receiving it, or within two months by agreement. The application needs scale plans in two copies, specifications and structural calculations, so gather those before the date you want to dig. We set the start date around that decision.
Can the new kitchen be fitted as part of the same East Ham job?
Yes, and it usually saves time. We plan the kitchen layout with the extension so the drainage, extract route, sockets and lighting are in the right places at first fix. Once the floor has dried and the walls are finished, the same team fits the units, worktops and appliances, and you deal with one programme and one point of contact.
Does Newham need to be told when extension work starts?
Yes. For an extension, Newham must be told when works are deemed commenced, which is when the foundations are built and the lowest floor structure is complete. At the end, a notice of completion goes to Newham Building Control within 5 days of the work being finished. We track both dates in the programme.
How much light will a narrow East Ham side return kitchen get?
Enough, if the roof is designed for it. A side return is lit mainly from above, so roof lights or a glazed strip along the boundary side bring daylight deep into the old middle room. Wide glazed doors to the garden add the rest, though a large glazed area has to pass the Part L energy calculation your designer prepares. We fix the glazing positions before the roof is framed so the structure suits them.
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