Kitchen Extensions Haringey

Among Haringey's houses the terrace dominates: 31% of the borough's homes are terraced against 5% semi-detached or detached, so a kitchen extension here is typically a side return infill, a short rear addition, or the two joined as a wraparound. The planning route turns on where the house sits. Outside conservation areas and listed buildings Haringey allows a single-storey rear extension without permission within set depths, while estates such as Noel Park carry their own design guidance. We build the shell, the steel and the kitchen as one programme.

In Haringey, 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 Haringey: 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.

Which kitchen extension suits a Haringey terrace

On a Haringey terrace the kitchen extension is normally a side return infill, a rear addition, or the two joined into a wraparound. Terraced houses are 31% of the borough's homes and semis or detached houses only 5%, so the wide garden plot that suits a large rear box is the exception here. The side return is the strip of yard beside the back addition; filling it moves the kitchen wall out to the boundary and turns a galley into a room you can cook and eat in.

The choice sets the sequence. A side return infill needs a new wall or a steel along the boundary, so the party wall position is settled before we set out, and you as building owner serve any notice the Party Wall Act requires. A wraparound adds a corner where the side and rear roofs meet, which is where the steel frame, the drainage fall and the roof light layout have to be worked out together. We price from the engineer's drawing, not a sketch, so each of these is known before the slab goes in.

Housing in Haringey

Haringey's housing, as the Council Tax list records it, is about 114,980 homes: 36% houses, 64% flats, with 54% pre-1919, 11% interwar and 35% built since 1945. Since most homes here are flats, only a ground floor flat in Haringey with its own garden can extend its kitchen.

Haringey permitted development depths and the larger rear extension

Outside conservation areas and listed buildings, Haringey says a single-storey rear extension can be built without planning permission to between 3m and 6m on a terraced or semi-detached house, and 4m to 8m on a detached house. The deeper end of that range goes through prior approval rather than straight permitted development, so the neighbours are consulted and the build date moves back by the time that process takes. The single-storey height limit under permitted development is four metres, and lower limits apply to eaves close to a boundary, which matters on a side return.

For a bigger rear extension that needs full planning, Haringey considers whether the garden left behind is still a reasonable size, among its other tests. On a short terraced plot that test can decide the depth before the design does. It is worth drawing the remaining garden on the plan from the start, so the depth you ask for is one you can defend, and the kitchen layout inside is fixed around a size that is likely to stand.

Noel Park, Tower Gardens and conservation area kitchens in Haringey

In a Haringey conservation area the larger prior approval depths are not available and side extensions lose permitted development altogether. A single-storey extension more than 3 metres beyond the back wall of a house, or 4 metres for a detached house, needs planning permission, and any extension at the side of a house needs it too. That puts a side return infill on a street inside the Crouch End or Muswell Hill conservation area onto a householder application, so the drawings, the application and the decision all sit ahead of the start date.

Some Haringey estates go further. The Noel Park design guidance says rear extensions should not cross the full width of the plot and should not usually project more than three metres beyond the rear wall, which weighs against a full wraparound on those terraces. Under the Tower Gardens Article 4 Direction, planning permission is needed for extensions, roof changes, windows, front boundaries and even painting brickwork. On these streets we build to the approved drawing, match the brick and bond the consent specifies, and keep the new glazing inside what was approved.

Drains, steel and glazing on a Haringey kitchen build

The drain run is usually the first thing to check on a Haringey kitchen extension. Haringey building control says that where development is within 3 metres of a public sewer, you must obtain build over permission from Thames Water before starting work. Behind a terrace a shared sewer can run across the back gardens, so we have the run traced and surveyed before the foundation design is finished. If an agreement is needed, it goes on the programme ahead of the dig, because the permission has to be in place before work starts.

The steel that opens the old back wall into the new room is designed by the structural engineer we appoint and sits on padstones sized in the calculations. Roof lights over a side return bring daylight into the middle of the house, where the old kitchen was darkest. We then fit the kitchen in the same programme: first fix plumbing and electrics before plaster, the floor screed laid to suit the units, and the worktops templated once the carcasses are level, so there is one team and one handover date.

• Steel beams and goalpost frames into the existing house
• Airbrick ducts to keep existing timber floors ventilated
• Utility rooms and larders at the back of the extension

VOA Council Tax stock of properties, March 2025, for all 36 statistical areas in Haringey. Counts rounded by the VOA.

If this is your first project in Haringey, these are worth a look: kitchen renovation in Haringey, our Haringey area guide, a side return kitchen infill, party wall notices for a kitchen extension, how we handle kitchen extensions across London and Side Return Extension Cost.

Why Choose GS Renovation in Haringey

You get one firm for the structure and the kitchen, so the steel, the drainage, the roof lights and the units are planned against a single drawing and a single programme. We work from the calculations of the structural engineer we appoint and from the approved plans, and we give you a written programme that shows where any Thames Water agreement, prior approval or planning decision has to land before work starts. Our founder and director, Abdelaaziz Saaid, has more than thirty years of hands-on building experience.

• Rated 4.9 from 31 reviews on MyBuilder
• Screed left to dry before the kitchen floor finish goes down
• Kitchen layout agreed before the foundations, so the services land in the right place

Reviewed jobs near Haringey

2 MyBuilder reviews from Wood Green and Hornsey, with each customer's own job title:

• New kitchen install moving plumbing, elecs, flooring, Wood Green, 19 Jan 2022 (5 out of 5)
• New Kitchen Assembly & Others for Interior Designer, Hornsey, 5 Jan 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.