Bentley, South Yorkshire
Kitchen-diner rear extension in Bentley
An open-plan kitchen, dining and family room that opens straight onto the garden. We design, get the approvals for and build kitchen-diner rear extensions in Bentley and the surrounding area, with one contract from the first survey to building control sign-off.
Bentley and its postcode districts DN1, DN2 and DN5 are part of our South Yorkshire coverage. We usually keep the working kitchen where the old one was and put the dining table in the new space by the doors, which suits most Bentley homes.
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 Bentley?
For Bentley we work from the Yorkshire and the Humber rate: £1,770–£2,880 per square metre of new floor, including VAT, standard specification. 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 Bentley?
The planning route for a kitchen-diner rear extension in Bentley is set by England's householder rules and your council.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part 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 Bentley like to extend?
Stone terraces and brick semis are typical of Bentley. Matching sandstone or gritstone on a terrace is one of the biggest cost variables, and reclaimed stone is often the best match.
How a kitchen-diner rear extension in Bentley 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 Bentley
We also build kitchen-diner rear extensions in nearby Doncaster (1.1 miles) and Adwick le Street (2.9 miles).
- Kitchen-diner rear extension in Doncaster
- Kitchen-diner rear extension in Adwick le Street
- Kitchen-diner rear extension in Kirk Sandall
- Kitchen-diner rear extension in Armthorpe
- Kitchen-diner rear extension in Conisbrough
Other work in Bentley:
FAQ
Kitchen-diner rear extension questions in Bentley
Do you handle building control in Bentley?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Do you fit the kitchen?
Yes, whether you buy it yourself or we supply it. We take the measurements from the built shell, not the drawings.
What postcode areas do you cover around Bentley?
Including DN1, DN2 and DN5, and the surrounding South Yorkshire area.
How much does a kitchen-diner rear extension cost in Bentley?
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.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.