Two-storey extensions in Exmouth
Everything for a two-storey extension in Exmouth, in one place: types, guide prices for South West England, the approval rules in England and how to get started.
Exmouth at a glance
- Postcode districts
- EX8 and EX9
- Area
- Devon, England
- Price region
- South West England
- Nearest towns
- Dawlish (3.8 miles), Teignmouth (6.4 miles), Heavitree (8.2 miles), Sidmouth (8.8 miles)
- Distance to Plymouth
- about 36.7 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover postcode districts EX8 and EX9 in and around Exmouth, along with neighbouring Dawlish, Teignmouth and Heavitree.
Extensions available in Exmouth
Two-storey rear extensions
Exmouth guide price from £57,500, Standard spec.
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Two-storey side extensions
From £88,500 in Exmouth. Free visit to firm it up.
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Two-storey wraparound extensions
Design, approvals and build for Exmouth homes. Guide from £124,000.
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Part single, part two-storey extensions
Design, approvals and build for Exmouth homes. Guide from £74,000.
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Extensions over a garage
From £32,500 in Exmouth. Free visit to firm it up.
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First-floor extensions
For homes in Exmouth: typical guide from £26,000.
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Two-storey extensions for semi-detached houses
For homes in Exmouth: typical guide from £57,500.
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Two-storey extensions for detached houses
Our South West England guide starts at £88,500 for this type.
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Kitchen extensions with bedrooms above
Design, approvals and build for Exmouth homes. Guide from £57,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Design, approvals and build for Exmouth homes. Guide from £57,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Exmouth depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
Also available in Devon
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Exmouth
Exmouth is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Exmouth
Do you cover Exmouth?
Yes. We cover Exmouth (EX8 and EX9) and the surrounding area, including Dawlish and Teignmouth. The first site visit is free.
What does a two-storey extension cost in Exmouth?
Using our South West England guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Exmouth do you cover?
Everywhere around it, including Dawlish (3.8 miles), Teignmouth (6.4 miles) and Heavitree (8.2 miles), and the rest of Devon.