Barnstaple, Devon
Terraced house rear extension in Barnstaple
Rear and side return extensions for terraces, with access through the house and two neighbours. We design, get the approvals for and build rear extensions for terraced houses in Barnstaple and the surrounding area, with one contract from the first survey to building control sign-off.
We cover Barnstaple (EX31 and EX32) as part of our Devon work. In Barnstaple we plan the delivery route through the house and the skip licence before anything else.
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 terraced house rear extension cost in Barnstaple?
For Barnstaple we work from the South West England rate: £2,130–£3,430 per square metre of new floor, including VAT, 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 × 4.5 m deep (13.5 m²) | £29,000–£46,500 |
| 3 m wide × 6 m deep (18 m²) | £38,500–£62,000 |
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 terraced house rear extension in Barnstaple?
Here is how the rules in England apply to a terraced house rear extension in Barnstaple.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
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 terraced house rear extension in Barnstaple 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.
Terraced house rear extensions near Barnstaple
We also build rear extensions for terraced houses in nearby Bideford (7.9 miles) and Ilfracombe (9.2 miles).
- Terraced house rear extension in Bideford
- Terraced house rear extension in Ilfracombe
- Terraced house rear extension in Minehead
- Terraced house rear extension in Tiverton
- Terraced house rear extension in Porthcawl
Other work in Barnstaple:
FAQ
Terraced house rear extension questions in Barnstaple
Do I need planning permission for a rear extension in Barnstaple?
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.
How much does a terraced house rear extension cost in Barnstaple?
As a guide, £2,130–£3,430 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £29,000–£46,500 at that rate. Your written price follows the survey.
Can you build without side access?
Yes. Materials come through the house in protected runs or over the roof by crane on tight sites.
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 you handle building control in Barnstaple?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Barnstaple free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.