Durham, County Durham
Bungalow rear extension in Durham
Bungalow rear extension in Durham: single-storey rear extensions that keep everything on one level. We measure the house, show you what the rules allow, price it in writing and build it.
Durham is covered from our County Durham round, including DH1. For bungalows in County Durham, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Durham?
Guide prices for a bungalow rear extension in Durham start from our North East England rate of £1,660–£2,700 per square metre, including VAT. 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 wide × 4 m deep (12 m²) | £20,000–£32,500 |
| 4 m wide × 6 m deep (24 m²) | £40,000–£65,000 |
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 bungalow rear extension in Durham?
Whether your bungalow rear extension in Durham needs a planning application depends on its size, your house and any local restrictions.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
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 Durham like to extend?
Brick terraces, colliery houses and post-war semis make up much of Durham. Former mining areas often need a coal mining risk check before foundations are designed.
How a bungalow rear extension in Durham 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Bungalow rear extensions near Durham
From Durham, the nearest places we also cover are Spennymoor (5.5 miles) and Chester-le-Street (5.7 miles).
- Bungalow rear extension in Spennymoor
- Bungalow rear extension in Chester-le-Street
- Bungalow rear extension in Hetton-le-Hole
- Bungalow rear extension in Houghton-le-Spring
- Bungalow rear extension in Stanley
Other work in Durham:
FAQ
Bungalow rear extension questions in Durham
How much does a bungalow rear extension cost in Durham?
As a guide, £1,660–£2,700 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £20,000–£32,500 at that rate. Your written price follows the survey.
Is the site visit in Durham free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
How long does a rear extension take to build in Durham?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
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.