How Much Does Kitchen Extension Cost?
A kitchen extension combines structural building work with a kitchen fit-out, creating an open-plan living and dining space. It is one of the most popular and value-adding home improvements.
Typical UK Costs
Budget£30,000Basic specification
Average£55,000Mid-range finish
Premium£100,000High-end specification
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These are average UK costs. Get a more accurate estimate tailored to your specific project details and location.
Get a Personalised EstimateWhat Affects the Cost?
- Extension size (sq metres)
- Single storey or wrap-around
- Structural work (steel beams, foundations)
- Kitchen specification and appliances
- Bi-fold or sliding doors
Frequently Asked Questions
How much does a kitchen extension cost per square metre?
Typical costs range from £1,500-£2,500/m² for the build, plus £5,000-£20,000 for the kitchen fit-out.
Do I need planning permission for a kitchen extension?
Single-storey rear extensions up to 3m (semi-detached) or 4m (detached) usually fall under permitted development.