Berwick-upon-Tweed, Northumberland
Rear extension planning drawings in Berwick-upon-Tweed
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in Berwick-upon-Tweed and the surrounding area, with one contract from the first survey to building control sign-off.
We cover Berwick-upon-Tweed (TD15) as part of our Northumberland work. Planning applications in Berwick-upon-Tweed go to the local planning authority covering Berwick-upon-Tweed, 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 Berwick-upon-Tweed?
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. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a rear extension in Berwick-upon-Tweed?
Whether your rear extension in Berwick-upon-Tweed needs a planning application depends on its size, your house and any local restrictions.
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 Berwick-upon-Tweed like to extend?
Brick terraces, colliery houses and post-war semis make up much of Berwick-upon-Tweed. Former mining areas often need a coal mining risk check before foundations are designed.
How a rear extension in Berwick-upon-Tweed 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.
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 Berwick-upon-Tweed
Neighbouring places we cover include Kelso (20.4 miles) and Dunbar (25.4 miles).
- Rear extension planning drawings in Kelso
- Rear extension planning drawings in Dunbar
- Rear extension planning drawings in Galashiels
- Rear extension planning drawings in Selkirk
- Rear extension planning drawings in Tranent
Other work in Berwick-upon-Tweed:
FAQ
Rear extension planning drawings questions in Berwick-upon-Tweed
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 Berwick-upon-Tweed?
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 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.
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.
What do rear extension planning drawings cost in Berwick-upon-Tweed?
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.
Is the site visit in Berwick-upon-Tweed free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.