Annfield Plain, County Durham
Rear extension planning drawings in Annfield Plain
We plan and build rear extensions for homeowners in Annfield Plain. 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.
Annfield Plain is covered from our County Durham round, including DH9. Planning applications in Annfield Plain go to the local planning authority covering Annfield Plain, and we check its local design guidance for rear extensions before drawing.
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 Annfield Plain?
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 Annfield Plain?
Whether your rear extension in Annfield Plain needs a planning application depends on its size, your house and any local restrictions.
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 Annfield Plain like to extend?
Brick terraces, colliery houses and post-war semis make up much of Annfield Plain. Former mining areas often need a coal mining risk check before foundations are designed.
How a rear extension in Annfield Plain comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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.
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 Annfield Plain
Close by, we work in Stanley, about 1.7 miles away, and Consett, about 3.7 miles away.
- Rear extension planning drawings in Stanley
- Rear extension planning drawings in Consett
- Rear extension planning drawings in Chester-le-Street
- Rear extension planning drawings in Whickham
- Rear extension planning drawings in Blaydon-on-Tyne
Other work in Annfield Plain:
FAQ
Rear extension planning drawings questions in Annfield Plain
What do rear extension planning drawings cost in Annfield Plain?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.
What postcode areas do you cover around Annfield Plain?
Including DH9, and the surrounding County Durham area.
What if planning is refused?
We review the reasons with you, amend and resubmit (often free of a second fee within 12 months in England) or appeal.
Can you match the brick or stone on my Annfield Plain house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.
Do you handle building control in Annfield Plain?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.