Two-storey extensions in Neston (Wiltshire)
Planning a bigger home in Neston (Wiltshire)? Compare extension types and guide prices below, then book a free site visit.
Neston (Wiltshire) at a glance
- Postcode districts
- SN13
- Area
- Wiltshire, England
- Price region
- South West England
- Nearest towns
- Corsham (1.7 miles), Melksham (3.8 miles), Chippenham (4.6 miles), Trowbridge (6.5 miles)
- Distance to Swindon
- about 20.7 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 Neston (Wiltshire) (SN13) and the places around it, including Corsham (1.7 miles), Melksham (3.8 miles) and Chippenham.
Extensions available in Neston (Wiltshire)

Two-storey rear extensions
From £57,500 in Neston (Wiltshire). Free visit to firm it up.
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Two-storey side extensions
Our South West England guide starts at £88,500 for this type.
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Two-storey wraparound extensions
From £124,000 in Neston (Wiltshire). Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £74,000 in Neston (Wiltshire), 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
Design, approvals and build for Neston (Wiltshire) homes. Guide from £26,000.
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Two-storey extensions for semi-detached houses
For homes in Neston (Wiltshire): typical guide from £57,500.
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Two-storey extensions for detached houses
For homes in Neston (Wiltshire): typical guide from £88,500.
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Kitchen extensions with bedrooms above
From £57,500 (before kitchen units) in Neston (Wiltshire). Free visit to firm it up.
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Extra bedroom and en-suite extensions
Our South West England guide starts at £57,500 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Which type suits your house in Neston (Wiltshire) 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 Wiltshire
- 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 Neston (Wiltshire)
Neston (Wiltshire) 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 Neston (Wiltshire)
Do you cover Neston (Wiltshire)?
Yes. We cover Neston (Wiltshire) (SN13) and the surrounding area, including Corsham and Melksham. The first site visit is free.
What does a two-storey extension cost in Neston (Wiltshire)?
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 Neston (Wiltshire) do you cover?
Everywhere around it, including Corsham (1.7 miles), Melksham (3.8 miles) and Chippenham (4.6 miles), and the rest of Wiltshire.