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 Blyth?
In Blyth, 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. Building costs in the North East run about 10% below the UK average, and the figures for Blyth are adjusted to reflect that. 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:
- Island with sink or hob, which needs services in the floor
- Who supplies the kitchen
- Extension size and roof design
- Glazing and roof lanterns
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a kitchen extension in Blyth?
The approval route for Blyth is set by planning law 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
The work we manage on a kitchen extension:
- Flooring and decoration
- Building control sign-off
- Kitchen layout planned alongside the extension design
- Kitchen fitting, worktops and splashbacks
- Electrics, lighting plan and sockets
- Extension structure, roof and glazing
How long does it take?
Expect 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 Blyth
The North East has many terraced streets and post-war semis, where rear extensions and loft conversions are popular ways to gain space.
Our Blyth coverage includes postcode districts NE24, and we also work in nearby places such as Bedlington, Ashington and Cramlington.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about kitchen extensions in Blyth
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.
Do you build kitchen extensions in Blyth?
Yes. We build kitchen extensions across Blyth, including postcodes NE24. Every project starts with a free home visit.
How long will I be without a kitchen?
Usually 3 to 6 weeks at the end of the job, once the back wall is opened and the new kitchen goes in. We can help set up a temporary kitchen.
Should the kitchen be designed before the extension?
Yes. Knowing where the sink, hob and island will go lets us place drains, ducting, sockets and windows correctly during the build.
How much does a kitchen extension cost in Blyth?
In Blyth, 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.