Kitchen Extensions Edmonton
Rear, side return and wraparound kitchen extensions in Edmonton, 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
On an Edmonton house, a kitchen extension is most likely to be built on a terrace: 45% of homes here are terraced houses and 5% are semi-detached or detached. That means a single storey addition off the back or into the side return, between two neighbours, with steel carrying the old rear wall and the new kitchen fitted in the same programme. On a planning application, Enfield Council's DMD11 policy holds a terrace extension to 3m deep, and we build to the drawings the owner's designer takes through it.
In Edmonton, 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 Edmonton: 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.
Quick estimate for Edmonton
Edmonton range: choose above
How deep an Edmonton terrace extension can go under Enfield policy
On a terraced house in Edmonton, Enfield's DMD11 policy says a single-storey rear extension must not exceed 3m in depth beyond the original rear wall. That figure shapes the whole kitchen plan before anyone chooses a worktop. The original rear wall is the one the house was built with, so an older lean-to or an earlier kitchen addition may already use some of that depth. Your designer should measure from the true original line and show it on the drawings.
Separately, national permitted development rules allow a single-storey rear extension of up to three metres on a house that is not detached, and up to six metres through prior approval outside designated land. Those rights sit apart from the council's policy test on a planning application. Which route your Edmonton kitchen takes decides the paperwork, the waiting time before we can start on site, and how much room the island and dining table get.
Housing in Edmonton
For Edmonton the Council Tax list gives about 18,850 homes; by type 49% flats and 51% houses, by age 48% post-war, 23% interwar and 29% older than 1919. 45% of homes here are terraced; a terrace kitchen extension in Edmonton starts in a narrow side return.
Semi-detached houses in Edmonton and the neighbour's window line
Semi-detached and detached houses are 5% of Edmonton's homes, but where you own a semi, Enfield's DMD11 gives it its own limits: a single storey extension must not exceed 3 metres in depth beyond the original wall or 3 metres in height. It also must not cross a 45-degree line drawn from neighbouring windows. That line decides how close to the boundary the full depth can run and where the side wall may need to step in.
For a flat roof, the same policy allows up to 3m to the eaves on a semi, with 3.3m to 3.5m to the top of a parapet wall. For an Edmonton kitchen that height matters in practice. It fixes how much room there is for a roof build-up with insulation, the upstand for roof lights and a ceiling that still feels generous over the cooking area. We set out the roof and lantern details against those heights before ordering any glazing.
Why an Edmonton flat cannot simply add a kitchen extension
Nearly half of Edmonton's homes are flats, 49% on the VOA count, and householder permitted development for extensions applies to houses only, not to flats and maisonettes. A ground floor flat owner who wants a bigger kitchen therefore needs full planning permission for any extension at all, however modest it looks on paper. The freeholder's consent under the lease is a separate step, and under many leases the outside walls, and sometimes the garden, stay with the freeholder.
In an Edmonton conversion, the practical order is lease first, then planning, then building regulations. We price and programme once the consents are in place, because the lease may set working hours or require a structural engineer's report before the freeholder agrees. Where the answer is no, a reworked layout inside the existing footprint is often the realistic kitchen project, and we can quote for that instead, from new units to moved plumbing and a better lighting plan.
Drainage, steel and glazing at the back of an Edmonton terrace
At the back of a Victorian terrace in Edmonton, the existing soil stack and gully often sit where the new kitchen wants to go. Before digging, we survey the run and confirm whether a shared or public sewer passes under the footprint, because building over one needs the water company's agreement. Rerouting waste for a sink moved into an island also needs enough fall, so the floor level is set early.
The opening into the old kitchen or back room is carried on steel beams specified by the structural engineer we appoint, with padstones and props while the rear wall comes out. Roof lights and a glazed rear wall bring daylight into a room that has lost its only window. We then fit the kitchen units, tiling and appliances ourselves, so the Edmonton build finishes with one team and one programme.
- New kitchen circuits, with Part P certification from a registered electrician
- Boiler relocation and flue changes on the enclosed rear wall
- Hob gas supply altered by a Gas Safe registered engineer
VOA Council Tax stock of properties, March 2025, for all 5 statistical areas in Edmonton. Counts rounded by the VOA.
Trusted Kitchen Extensions in Edmonton
An extension and a new kitchen are two trades that usually fall out over the gap between them. We run both: groundworks, steel, roof and glazing, then first fix, plaster, units and worktops, on one programme with one point of contact. The founder has more than three decades of hands-on building work behind him. We build to the approved drawings and the engineer's calculations, coordinate building control inspections at each stage, and keep a working sink available as long as the layout allows.
- Founder with 30+ years of hands-on experience
- Screed left to dry before the kitchen floor finish goes down
- Building control and Part P certificates handed over together at the end
Reviewed jobs near Edmonton
1 MyBuilder review from Lower Edmonton, with each customer's own job title:
- Fit a new bathroom suite, Lower Edmonton, 19 May 2017 (5 out of 5)
Read all 31 on our reviews page.
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…
Saaid is the best craftsman I have worked with. He knows what he is doing from the very beginning. He has a great knowledge of construction…
George was a great find. The job required re-plastering the walls before fitting acrylic panels. He also re-plumbed the shower waste under the solid…
FAQ
Frequently Asked Questions about Kitchen Extensions Edmonton
What is included in your kitchen extensions price in Edmonton?
The kitchen extensions price for an Edmonton home is itemised as labour, materials, approvals and reinstatement, typically totalling £45,000 to £97,500 excluding VAT for a rear kitchen extension of about 30 square metres (indicative). Where the design needs an engineer, GS Renovation appoints and coordinates the engineer and builds to their specification at N9. The Enfield Council building control fee has its own line, and the lines follow the order of works: the shell is made watertight before the old rear wall is opened and the existing kitchen comes out.
How far can a kitchen extension go on an Edmonton terraced house?
Under Enfield's DMD11 policy, a single-storey rear extension to a terraced property must not exceed 3m in depth beyond the original rear wall when judged on a planning application. National permitted development can allow up to three metres without an application, or up to six metres through prior approval outside designated land. Your designer decides which route suits the house before we price.
Can the owner of a ground floor flat in Edmonton extend the kitchen?
You can, but only with planning permission, because householder permitted development rights for extensions apply to houses and not to flats or maisonettes. The lease will almost certainly require the freeholder's written consent too, and the garden may not be yours to build on. Settle the lease question first, then planning, then we can programme the build.
What height can a flat roofed kitchen extension be on an Edmonton semi?
Enfield's DMD11(2)(a) allows a flat roofed single storey rear extension to a semi-detached house up to 3m to the eaves, with 3.3m to 3.5m to the top of a parapet wall. That leaves limited room for insulation and roof lights, so the roof build-up is detailed on the drawings before we order materials.
Does the 45 degree rule affect a kitchen extension in Edmonton?
Yes, on a planning application. Enfield's DMD11 criterion 2b says a single storey extension should not exceed a 45 degree line taken from the mid-point of the nearest original ground floor window of the adjacent property. Your designer draws that line on plan and elevation, and it may pull the far corner of the extension back from the boundary.
Can a house in the Church Street conservation area in Edmonton get a side extension?
Only with householder planning permission. Planning Data gives the Church Street, Edmonton conservation area a designation date of 1970, and under national rules all side extensions on designated land such as a conservation area need a planning application. The larger rear extension through prior approval is not available on that land either. Expect materials, roof form and the view from the street to carry more weight in the council's assessment.
Do you fit the kitchen as well as building the extension?
Yes. Once the shell is watertight and plastered, the same team fits the units, worktops, splashback, flooring and lighting. A registered electrician certifies the new circuits and an engineer on the Gas Safe Register connects any gas hob. Running both in one programme avoids the gap, and the dispute over who finishes what, when two firms share one room.
Where does the drainage go when the kitchen moves into the extension?
Usually into the existing run at the back of the house, extended or rerouted to suit the new sink position. We check whether a shared sewer runs under the footprint, because that needs the water company's agreement before we build over it. Sinks in islands need careful falls, so floor levels are set with the drainage in mind.
Can we stay in our Edmonton house during the kitchen extension?
Often, yes. On a Victorian terrace, the rear wall stays up for as long as possible while the new walls and roof go up outside it, and a temporary kitchen can be set up in another room. The noisiest and dustiest days are the groundworks and the day the opening is formed, which we flag in the programme in advance.
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