York, North Yorkshire
Kitchen-diner rear extension in York
An open-plan kitchen, dining and family room that opens straight onto the garden. If you live in York and want to know what a kitchen-diner rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
York is covered from our North Yorkshire round, including YO1, YO10, YO23 and YO24. A kitchen-diner is often the reason people in York extend: the back kitchen in back-to-back and through terraces is rarely big enough for a table.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a kitchen-diner rear extension cost in York?
Guide prices for a kitchen-diner rear extension in York start from our Yorkshire and the Humber rate of £1,770–£2,880 per square metre, including VAT. Yorkshire prices sit below our West Midlands baseline; matching natural stone is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,000–£34,500 |
| 4 m wide × 5 m deep (20 m²) | £35,500–£57,500 |
| 4 m wide × 6 m deep (24 m²) | £42,500–£69,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a kitchen-diner rear extension in York?
Here is how the rules in England apply to a kitchen-diner rear extension in York.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in York like to extend?
York has through terraces and some back-to-backs as well as later semis; back-to-backs have little or no rear space, so we look at side or loft options there.
How a kitchen-diner rear extension in York comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Kitchen-diner rear extensions near York
We also build kitchen-diner rear extensions in nearby Haxby (3.9 miles) and Selby (12.1 miles).
- Kitchen-diner rear extension in Haxby
- Kitchen-diner rear extension in Selby
- Kitchen-diner rear extension in Wetherby
- Kitchen-diner rear extension in Knaresborough
- Kitchen-diner rear extension in Garforth
Other work in York:
FAQ
Kitchen-diner rear extension questions in York
Is the site visit in York free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a kitchen-diner rear extension cost in York?
As a guide, £1,770–£2,880 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,000–£34,500 at that rate. Your written price follows the survey.
Where does the cooker extraction go?
Through the new wall or roof, ducted to outside. Recirculating hoods are possible but less effective.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can you match the brick or stone on my York house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around York?
Including YO1, YO10, YO23, YO24, YO30 and YO31, and the surrounding North Yorkshire area.