Two-storey extensions in Poole
We design, get approval for and build two-storey extensions in Poole and the surrounding area. Choose the type of extension below or book a free site visit.
Poole at a glance
- Postcode districts
- BH15 and BH20
- Area
- Dorset, England
- Price region
- South West England
- Nearest towns
- Parkstone (2 miles), Canford Heath (2.6 miles), Broadstone (3 miles), Bournemouth (4.6 miles)
- Distance to Bournemouth
- about 4.6 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 Poole (BH15 and BH20) and the places around it, including Parkstone (2.0 miles), Canford Heath (2.6 miles) and Broadstone.
Extensions available in Poole
Two-storey rear extensions
Poole guide price from £57,500, Standard spec.
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Two-storey side extensions
Poole guide price from £88,500, Standard spec.
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Two-storey wraparound extensions
For homes in Poole: typical guide from £124,000.
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Part single, part two-storey extensions
Poole guide price from £74,000, Standard spec.
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Extensions over a garage
Design, approvals and build for Poole homes. Guide from £32,500.
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First-floor extensions
From £26,000 in Poole. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Our South West England guide starts at £57,500 for this type.
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Two-storey extensions for detached houses
Design, approvals and build for Poole homes. Guide from £88,500.
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Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Poole. Free visit to firm it up.
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Extra bedroom and en-suite extensions
From £57,500 (plus en-suite) in Poole. Free visit to firm it up.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Dorset, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
Also available in Dorset
- 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 Poole
Poole 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 Poole
Do you cover Poole?
Yes. We cover Poole (BH15 and BH20) and the surrounding area, including Parkstone and Canford Heath. The first site visit is free.
What does a two-storey extension cost in Poole?
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 Poole do you cover?
Everywhere around it, including Parkstone (2 miles), Canford Heath (2.6 miles) and Broadstone (3 miles), and the rest of Dorset.