Bishop Auckland, County Durham
Rear extension planning drawings in Bishop Auckland
We plan and build rear extensions for homeowners in Bishop Auckland. 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.
We cover Bishop Auckland (DL4 and DL14) as part of our County Durham work. Planning applications in Bishop Auckland go to the local planning authority covering Bishop Auckland, 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 Bishop Auckland?
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. 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 rear extension in Bishop Auckland?
Here is how the rules in England apply to a rear extension in Bishop Auckland.
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Bishop Auckland like to extend?
Terraces and semis are typical around Bishop Auckland. 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 Bishop Auckland 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.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Rear extension planning drawings near Bishop Auckland
Close by, we work in Spennymoor, about 4.2 miles away, and Newton Aycliffe, about 4.9 miles away.
- Rear extension planning drawings in Spennymoor
- Rear extension planning drawings in Newton Aycliffe
- Rear extension planning drawings in Durham
- Rear extension planning drawings in Darlington
- Rear extension planning drawings in Annfield Plain
Other work in Bishop Auckland:
FAQ
Rear extension planning drawings questions in Bishop Auckland
Do you handle building control in Bishop Auckland?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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 planning conditions affect the build?
Yes, for example matching materials or obscure glazing. We plan for them.
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.
How long does a rear extension take to build in Bishop Auckland?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
What do rear extension planning drawings cost in Bishop Auckland?
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.