Two-storey extensions in Weston-super-Mare
Planning a bigger home in Weston-super-Mare? Compare extension types and guide prices below, then book a free site visit.
Weston-super-Mare at a glance
- Postcode districts
- BS22, BS23, BS24 and BS29
- Area
- Somerset, England
- Price region
- South West England
- Nearest towns
- Yatton (7.2 miles), Burnham-on-Sea (7.5 miles), Clevedon (8.4 miles), Nailsea (11.1 miles)
- Distance to Bath
- about 26.6 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 Weston-super-Mare we also work in Yatton, Burnham-on-Sea and Clevedon, and across the rest of Somerset. Postcode districts in and near Weston-super-Mare: BS22, BS23, BS24 and BS29.
Extensions available in Weston-super-Mare
Two-storey rear extensions
For homes in Weston-super-Mare: typical guide from £57,500.
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Two-storey side extensions
For homes in Weston-super-Mare: typical guide from £88,500.
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Two-storey wraparound extensions
Weston-super-Mare guide price from £124,000, Standard spec.
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Part single, part two-storey extensions
From £74,000 in Weston-super-Mare. Free visit to firm it up.
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Extensions over a garage
For homes in Weston-super-Mare: typical guide from £32,500.
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First-floor extensions
Design, approvals and build for Weston-super-Mare homes. Guide from £26,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Weston-super-Mare homes. Guide from £57,500.
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Two-storey extensions for detached houses
Guide from £88,500 in Weston-super-Mare, including VAT.
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Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Weston-super-Mare. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Design, approvals and build for Weston-super-Mare homes. Guide from £57,500 (plus en-suite).
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Weston-super-Mare we measure distances to every boundary before suggesting a type.
Also available in Somerset
- 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 Weston-super-Mare
Weston-super-Mare 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 Weston-super-Mare
Do you cover Weston-super-Mare?
Yes. We cover Weston-super-Mare (BS22, BS23, BS24 and BS29) and the surrounding area, including Yatton and Burnham-on-Sea. The first site visit is free.
What does a two-storey extension cost in Weston-super-Mare?
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 Weston-super-Mare do you cover?
Everywhere around it, including Yatton (7.2 miles), Burnham-on-Sea (7.5 miles) and Clevedon (8.4 miles), and the rest of Somerset.