Exeter, Devon
Two-storey rear extension in Exeter
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Exeter 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.
Exeter sits in Devon, with postcode districts including EX1, EX2, EX3 and EX4. In Exeter, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
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 Exeter?
A two-storey rear extension in Exeter is priced at £1,870–£2,810 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 × 5 m footprint, two floors (30 m²) | £56,000–£84,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £90,000–£135,000 |
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 two-storey rear extension in Exeter?
The planning route for a two-storey rear extension in Exeter is set by England's householder rules and your council.
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 Exeter like to extend?
Stone-built and rendered houses are common around Exeter, 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 two-storey rear extension in Exeter 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Two-storey rear extensions near Exeter
Close by, we work in Heavitree, about 1.4 miles away, and Exmouth, about 9.2 miles away.
- Two-storey rear extension in Heavitree
- Two-storey rear extension in Exmouth
- Two-storey rear extension in Dawlish
- Two-storey rear extension in Kingsteignton
- Two-storey rear extension in Teignmouth
Other work in Exeter:
FAQ
Two-storey rear extension questions in Exeter
How much does a two-storey rear extension cost in Exeter?
As a guide, £1,870–£2,810 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £56,000–£84,000 at that rate. Your written price follows the survey.
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 it be built on a terraced house?
Sometimes, but the upper floor is harder to get through planning on a terrace because of the effect on neighbours. A single-storey extension with a loft conversion is often an easier route.
Can you match the brick or stone on my Exeter house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around Exeter?
Including EX1, EX2, EX3 and EX4, and the surrounding Devon area.
How long does a rear extension take to build in Exeter?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.