Barnstaple, Devon
Bungalow rear extension in Barnstaple
We plan and build rear extensions for bungalows for homeowners in Barnstaple. Single-storey rear extensions that keep everything on one level. Start with a free site visit, then a written price once the design is agreed.
Barnstaple sits in Devon, with postcode districts including EX31 and EX32. For bungalows in Devon, 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 Barnstaple?
In Barnstaple, our guide for a bungalow rear extension is £1,920–£3,120 per square metre including VAT for a standard specification. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £23,000–£37,500 |
| 4 m wide × 6 m deep (24 m²) | £46,000–£75,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a bungalow rear extension in Barnstaple?
Here is how the rules in England apply to a bungalow rear extension in Barnstaple.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
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 Barnstaple like to extend?
Stone-built and rendered houses are common around Barnstaple, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a bungalow rear extension in Barnstaple 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.
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.
Bungalow rear extensions near Barnstaple
Neighbouring places we cover include Bideford (7.9 miles) and Ilfracombe (9.2 miles).
- Bungalow rear extension in Bideford
- Bungalow rear extension in Ilfracombe
- Bungalow rear extension in Minehead
- Bungalow rear extension in Tiverton
- Bungalow rear extension in Porthcawl
Other work in Barnstaple:
FAQ
Bungalow rear extension questions in Barnstaple
How long does a rear extension take to build in Barnstaple?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Can I extend the loft as well?
Sometimes, but that is a different project; a rear extension keeps everything on one level.
What postcode areas do you cover around Barnstaple?
Including EX31 and EX32, and the surrounding Devon area.
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.
How much does a bungalow rear extension cost in Barnstaple?
As a guide, £1,920–£3,120 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £23,000–£37,500 at that rate. Your written price follows the survey.