Kitchen extensions · Isleworth

Kitchen extensions in Isleworth

Our kitchen extensions service covers Isleworth and the rest of London. You get a fixed price in writing for the agreed specification, and one person co-ordinating the trades.

Covering Isleworth

Our coverage around Isleworth (TW7) also includes Hounslow, Heston and Richmond.

Homes in London

Much of London’s housing is Victorian and Edwardian terraces, which is why side return extensions, rear dormers and mansards are so common. Many streets are in conservation areas, and several boroughs use Article 4 directions that remove some permitted development rights.

What do you get with a kitchen extension?

We design the room and the kitchen together, so the island, sink and appliances line up with the structure rather than fighting it. You can use your own kitchen supplier or have us supply and fit one. Either way we co-ordinate the trades so the room is finished in one sequence.

  • Planning or permitted development check
  • Steelwork, roof, glazing and insulation
  • Kitchen fitting, worktop templating and appliances

How much should I budget for a kitchen extension?

Guide prices for kitchen extensions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

Kitchen extensionsGuide price incl. VAT
Extension build£2,600 to £4,000 per m²
Kitchen supply and fit, mid-range£10,000 to £20,000
Kitchen supply and fit, high-end£20,000 to £40,000

What approvals does a kitchen extension need in England?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

In England a single-storey rear extension can often go ahead under permitted development: up to 3 m deep on an attached house or 4 m on a detached one, no higher than 4 m, with eaves no higher than 3 m within 2 m of a boundary.

What can affect a kitchen extension?

  • Islands with sinks or hobs need drainage and power routed in the slab.
  • Extraction to the outside must be planned before the walls go up.

From first call to completion

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Questions about a kitchen extension in Isleworth

How much does a kitchen extension cost?

The build is usually £2,600 to £4,000 per square metre including VAT, and the kitchen adds roughly £10,000 to £40,000 depending on the units, worktops and appliances.

Do kitchen extensions need planning permission?

They follow the same rules as any single-storey extension. Many in England are permitted development.

How do I get a price for kitchen extensions in Isleworth?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Kitchen extensions near Isleworth

Learn more about kitchen extensions, or see every project we cover in Isleworth.

Planning an extension, loft or new home?

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