Two-storey extensions in Broadstone
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Broadstone.
Broadstone at a glance
- Postcode districts
- BH16 and BH18
- Area
- Dorset, England
- Price region
- South West England
- Nearest towns
- Canford Heath (1.2 miles), Wimborne Minster (1.9 miles), Parkstone (2.9 miles), Poole (3 miles)
- Distance to Bournemouth
- about 5.6 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.
Around Broadstone we also work in Canford Heath, Wimborne Minster and Parkstone, and across the rest of Dorset. Postcode districts in and near Broadstone: BH16 and BH18.
Extensions available in Broadstone
Two-storey rear extensions
Our South West England guide starts at £57,500 for this type.
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Two-storey side extensions
For homes in Broadstone: typical guide from £88,500.
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Two-storey wraparound extensions
Broadstone guide price from £124,000, Standard spec.
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Part single, part two-storey extensions
Guide from £74,000 in Broadstone, including VAT.
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Extensions over a garage
Our South West England guide starts at £32,500 for this type.
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First-floor extensions
For homes in Broadstone: typical guide from £26,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Broadstone homes. 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
Our South West England guide starts at £57,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Guide from £57,500 (plus en-suite) in Broadstone, including VAT.
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 Broadstone
Broadstone 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 Broadstone
Do you cover Broadstone?
Yes. We cover Broadstone (BH16 and BH18) and the surrounding area, including Canford Heath and Wimborne Minster. The first site visit is free.
What does a two-storey extension cost in Broadstone?
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 Broadstone do you cover?
Everywhere around it, including Canford Heath (1.2 miles), Wimborne Minster (1.9 miles) and Parkstone (2.9 miles), and the rest of Dorset.