Sunderland, Tyne and Wear
Rear extension planning drawings in Sunderland
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in Sunderland and the surrounding area, with one contract from the first survey to building control sign-off.
Sunderland and its postcode districts SR2, SR3, SR4 and SR5 are part of our Tyne and Wear coverage. For Sunderland homes we start with a measured survey, then draw options before anything is submitted.
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 Sunderland?
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 Sunderland?
Planning for a rear extension in Sunderland follows the English householder rules.
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 Sunderland like to extend?
Terraces and semis are typical around Sunderland. 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 Sunderland 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 Sunderland
Close by, we work in Ryhope, about 2.3 miles away, and The Boldons, about 3.9 miles away.
- Rear extension planning drawings in Ryhope
- Rear extension planning drawings in The Boldons
- Rear extension planning drawings in Seaham
- Rear extension planning drawings in Washington
- Rear extension planning drawings in Houghton-le-Spring
Other work in Sunderland:
FAQ
Rear extension planning drawings questions in Sunderland
Is the site visit in Sunderland free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Sunderland?
Including SR2, SR3, SR4, SR5, SR6 and SR9, and the surrounding Tyne and Wear area.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Do you handle building control in Sunderland?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need planning permission for a rear extension in Sunderland?
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 do rear extension planning drawings cost in Sunderland?
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.