Chester-le-Street, County Durham
Rear extension planning drawings in Chester-le-Street
We plan and build rear extensions for homeowners in Chester-le-Street. Measured survey, design options, planning drawings and the application, handled for you. Start with a free site visit, then a written price once the design is agreed.
Chester-le-Street is covered from our County Durham round, including DH2. Rear extension applications in County Durham are householder applications, which councils aim to decide within about eight weeks.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Chester-le-Street?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a rear extension in Chester-le-Street?
Planning for a rear extension in Chester-le-Street follows the English householder rules.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
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?
Terraces and semis are typical around Chester-le-Street. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.
How a 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
Rear extension planning drawings 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).
- Rear extension planning drawings in Washington
- Rear extension planning drawings in Houghton-le-Spring
- Rear extension planning drawings in Stanley
- Rear extension planning drawings in Durham
- Rear extension planning drawings in Hetton-le-Hole
Other work in Chester-le-Street:
FAQ
Rear extension planning drawings questions in Chester-le-Street
Can you match the brick or stone on my Chester-le-Street house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
How long does a rear extension take to build in Chester-le-Street?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Is the site visit in Chester-le-Street free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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.