Bishop Auckland, County Durham
Two-storey rear extension in Bishop Auckland
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Bishop Auckland and want to know what a two-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Bishop Auckland (DL4 and DL14) as part of our County Durham work. In County Durham we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 Bishop Auckland?
For Bishop Auckland 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 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a two-storey rear extension in Bishop Auckland?
Here is how the rules in England apply to a two-storey rear extension in Bishop Auckland.
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. 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 Bishop Auckland like to extend?
Brick terraces, colliery houses and post-war semis make up much of Bishop Auckland. Former mining areas often need a coal mining risk check before foundations are designed.
How a two-storey rear extension in Bishop Auckland 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.
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.
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 Bishop Auckland
From Bishop Auckland, the nearest places we also cover are Spennymoor (4.2 miles) and Newton Aycliffe (4.9 miles).
- Two-storey rear extension in Spennymoor
- Two-storey rear extension in Newton Aycliffe
- Two-storey rear extension in Durham
- Two-storey rear extension in Darlington
- Two-storey rear extension in Annfield Plain
Other work in Bishop Auckland:
FAQ
Two-storey rear extension questions in Bishop Auckland
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.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
Is the site visit in Bishop Auckland free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do I need planning permission for a rear extension in Bishop Auckland?
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.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.