What is a kitchen extension?

A kitchen extension is an extension designed around a new kitchen, usually an open-plan kitchen, dining and family space at the back of the house. We build the extension and fit the kitchen as one project, so plumbing, electrics and lighting are planned around the layout from the start.
How much does a kitchen extension cost in Billingham?
In Billingham, a kitchen extension typically costs £2,000–£3,050 per m² including a mid-range kitchen, including VAT at 20% (standard rate). For a typical 22 m² project that is roughly £44,000–£67,000. Prices across the North East are typically 10% below the UK average for this kind of work, which is reflected in the range for Billingham. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (15 m²) | £30,000–£46,000 |
| Typical project (22 m²) | £44,000–£67,000 |
| Larger project (31 m²) | £62,000–£94,500 |
| Rate per m² | £2,000–£3,050 |
The main things that change the cost:
- Glazing and roof lanterns
- Kitchen units, worktops and appliances
- Who supplies the kitchen
- Extension size and roof design
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a kitchen extension in Billingham?
Before anything is built in Billingham, we confirm which approvals apply in England. In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
On a typical kitchen extension we handle:
- Building control sign-off
- Drainage and water supply positioned for the sink and appliances
- Kitchen fitting, worktops and splashbacks
- Kitchen layout planned alongside the extension design
- Flooring and decoration
- Electrics, lighting plan and sockets
How long does it take?
The build itself usually takes 11 to 16 weeks on site, including kitchen fitting. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Billingham
Across the North East, colliery-era terraces and newer estates sit side by side, so the right project depends on the house type.
We work across Billingham and neighbouring areas such as Stockton-on-Tees, Middlesbrough and Thornaby-on-Tees. Postcodes we cover in Billingham include TS23.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about kitchen extensions in Billingham
How much does a kitchen extension cost in Billingham?
In Billingham, a kitchen extension typically costs £2,000–£3,050 per m² including a mid-range kitchen, including VAT at 20% (standard rate). A typical 22 m² project comes to roughly £44,000–£67,000. Your fixed price depends on the survey and drawings.
Can I buy my own kitchen?
Yes. You can supply it and we fit it, or we supply it as part of the price. Either way we coordinate deliveries with the build programme.
Will I need planning permission?
The same rules apply as for any extension. Many single-storey kitchen extensions are permitted development; larger or wraparound designs need an application.
How long does a kitchen extension take in Billingham?
Typically 11 to 16 weeks on site, including kitchen fitting. Design and approvals beforehand usually take 6 to 12 weeks.
Is underfloor heating worth it?
In a large open-plan space it frees wall space for units and glazing and gives even heat. It is easiest to fit during the build.
