Ashington, Northumberland
Two-storey rear extension in Ashington
For homes in Ashington, a two-storey rear extension is often the simplest way to gain space without moving. A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We take it from survey to completion certificate.
We cover Ashington (NE62, NE63 and NE64) as part of our Northumberland work. Two-storey rear extensions suit semi-detached houses in Ashington best, where the extra bedroom matters as much as the bigger kitchen.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a two-storey rear extension cost in Ashington?
For Ashington we work from the North East England rate: £1,620–£2,430 per square metre of new floor, including VAT, standard specification. North East prices are among the lowest in our range; former mining ground is the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £48,500–£73,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £78,000–£116,500 |
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 two-storey rear extension in Ashington?
Here is how the rules in England apply to a two-storey rear extension in Ashington.
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.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Ashington like to extend?
Brick terraces, colliery houses and post-war semis make up much of Ashington. Former mining areas often need a coal mining risk check before foundations are designed.
How a two-storey rear extension in Ashington comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
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.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Two-storey rear extensions near Ashington
We also build two-storey rear extensions in nearby Bedlington (3.4 miles) and Blyth (4.1 miles).
- Two-storey rear extension in Bedlington
- Two-storey rear extension in Blyth
- Two-storey rear extension in Morpeth
- Two-storey rear extension in Cramlington
- Two-storey rear extension in Whitley Bay
Other work in Ashington:
FAQ
Two-storey rear extension questions in Ashington
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.
Do I need planning permission for a rear extension in Ashington?
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 is the 45-degree rule?
Many councils check that a two-storey extension does not cross a 45-degree line drawn from the nearest habitable window of the neighbouring house. We test it at the first drawing.
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.
How much does a two-storey rear extension cost in Ashington?
As a guide, £1,620–£2,430 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £48,500–£73,000 at that rate. Your written price follows the survey.
Is the site visit in Ashington free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.