Wallingford, Oxfordshire
Rear extension planning drawings in Wallingford
For homes in Wallingford, a rear extension is often the simplest way to gain space without moving. Measured survey, design options, planning drawings and the application, handled for you. We take it from survey to completion certificate.
We cover Wallingford (OX10) as part of our Oxfordshire work. Rear extension applications in Oxfordshire 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 Wallingford?
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 Wallingford?
Here is how the rules in England apply to a rear extension in Wallingford.
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. 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 Wallingford like to extend?
Commuter semis and detached houses make up much of Wallingford, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a rear extension in Wallingford comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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 Wallingford
Close by, we work in Didcot, about 5.1 miles away, and Abingdon, about 8.4 miles away.
- Rear extension planning drawings in Didcot
- Rear extension planning drawings in Abingdon
- Rear extension planning drawings in Cowley
- Rear extension planning drawings in Henley-on-Thames
- Rear extension planning drawings in Reading
Other work in Wallingford:
FAQ
Rear extension planning drawings questions in Wallingford
Can you match the brick or stone on my Wallingford house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is the site visit in Wallingford free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
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.
How long does a rear extension take to build in Wallingford?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do you handle building control in Wallingford?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.