Two-storey extensions in Plymouth
Need more room in Plymouth? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Plymouth at a glance
- Postcode districts
- PL1, PL2, PL3, PL4 and PL6
- Area
- Devon, England
- Price region
- South West England
- Nearest towns
- Plymstock (2.4 miles), Saltash (4.5 miles), Ivybridge (10 miles), Tavistock (12.3 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 Plymouth (PL1, PL2, PL3, PL4 and PL6) and the places around it, including Plymstock (2.4 miles), Saltash (4.5 miles) and Ivybridge.
Extensions available in Plymouth
Two-storey rear extensions
Our South West England guide starts at £57,500 for this type.
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Two-storey side extensions
From £88,500 in Plymouth. Free visit to firm it up.
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Two-storey wraparound extensions
Guide from £124,000 in Plymouth, including VAT.
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Part single, part two-storey extensions
Our South West England guide starts at £74,000 for this type.
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Extensions over a garage
Plymouth guide price from £32,500, Standard spec.
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First-floor extensions
Our South West England guide starts at £26,000 for this type.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Plymouth homes. Guide from £57,500.
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Two-storey extensions for detached houses
For homes in Plymouth: typical guide from £88,500.
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Kitchen extensions with bedrooms above
Guide from £57,500 (before kitchen units) in Plymouth, including VAT.
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Extra bedroom and en-suite extensions
Guide from £57,500 (plus en-suite) in Plymouth, including VAT.
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
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 Plymouth
Plymouth 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 Plymouth
Do you cover Plymouth?
Yes. We cover Plymouth (PL1, PL2, PL3, PL4 and PL6) and the surrounding area, including Plymstock and Saltash. The first site visit is free.
What does a two-storey extension cost in Plymouth?
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 Plymouth do you cover?
Everywhere around it, including Plymstock (2.4 miles), Saltash (4.5 miles) and Ivybridge (10 miles), and the rest of Devon.