Covering Harpenden
Alongside Harpenden, we also cover St Albans, Luton (5 miles to the north-west) and Hemel Hempstead.
Homes in the East of England
Across the East of England, newer estates often have integral garages and room for rear extensions, while older towns have Victorian terraces and conservation areas that shape what can be built.
What is included in a kitchen extension in Harpenden?
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.
- Drainage, gas and electrics planned to the kitchen layout
- Kitchen fitting, worktop templating and appliances
- Tiling, flooring and decoration-ready finish
How much does a kitchen extension cost in Harpenden?
What kitchen extensions typically cost. These are guide ranges; the written quote for your house replaces them.
| Kitchen extensions | Guide 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?
In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it 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. Deeper extensions, up to 6 m or 8 m, need prior approval from the council first.
What should I think about before starting?
- Worktops are templated after the units are fitted, adding a short gap before completion.
- Underfloor heating suits large kitchen-diners with glazed walls.
From first call to completion
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Questions about a kitchen extension in Harpenden
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.
Who deals with the council for a project in Harpenden?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Also covering
- Kitchen extensions in St Albans
- Kitchen extensions in Luton
- Kitchen extensions in Hemel Hempstead
- Kitchen extensions in Welwyn Garden City
Learn more about kitchen extensions, or see every project we cover in Harpenden.

