Chester-le-Street, County Durham
Kitchen-diner rear extension in Chester-le-Street
Thinking about a kitchen-diner rear extension in Chester-le-Street? An open-plan kitchen, dining and family room that opens straight onto the garden. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Chester-le-Street (DH2) as part of our County Durham work. 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 Chester-le-Street 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 Chester-le-Street?
For Chester-le-Street we work from the North East England rate: £1,710–£2,790 per square metre of new floor, including VAT, standard specification. North East prices are among the lowest in our range; former mining ground is the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £20,500–£33,500 |
| 4 m wide × 5 m deep (20 m²) | £34,000–£56,000 |
| 4 m wide × 6 m deep (24 m²) | £41,000–£67,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a kitchen-diner rear extension in Chester-le-Street?
Here is how the rules in England apply to a kitchen-diner rear extension in Chester-le-Street.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Chester-le-Street like to extend?
Brick terraces, colliery houses and post-war semis make up much of Chester-le-Street. Former mining areas often need a coal mining risk check before foundations are designed.
How a kitchen-diner rear extension in Chester-le-Street 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.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Kitchen-diner rear extensions near Chester-le-Street
From Chester-le-Street, the nearest places we also cover are Washington (3.7 miles) and Houghton-le-Spring (4.5 miles).
- Kitchen-diner rear extension in Washington
- Kitchen-diner rear extension in Houghton-le-Spring
- Kitchen-diner rear extension in Stanley
- Kitchen-diner rear extension in Durham
- Kitchen-diner rear extension in Hetton-le-Hole
Other work in Chester-le-Street:
FAQ
Kitchen-diner rear extension questions in Chester-le-Street
Do I need planning permission for a rear extension in Chester-le-Street?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
What postcode areas do you cover around Chester-le-Street?
Including DH2, and the surrounding County Durham area.
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.
How much does a kitchen-diner rear extension cost in Chester-le-Street?
As a guide, £1,710–£2,790 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £20,500–£33,500 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.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.