Two-storey extensions in Woolston
Need more room in Woolston? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Woolston at a glance
- Postcode districts
- SO19
- Area
- Hampshire, England
- Price region
- South East England
- Nearest towns
- Southampton (1.4 miles), Portswood (2.4 miles), Hythe (Hampshire) (2.5 miles), Hedge End (3.6 miles)
- Distance to Southampton
- about 1.4 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 postcode district SO19 in and around Woolston, along with neighbouring Southampton, Portswood and Hythe (Hampshire).
Extensions available in Woolston

Two-storey rear extensions
Woolston guide price from £61,500, Standard spec.
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Two-storey side extensions
Woolston guide price from £94,500, Standard spec.
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Two-storey wraparound extensions
From £132,500 in Woolston. Free visit to firm it up.
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Part single, part two-storey extensions
For homes in Woolston: typical guide from £79,000.
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Extensions over a garage
Guide from £34,500 in Woolston, including VAT.
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First-floor extensions
Woolston guide price from £27,500, Standard spec.
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Two-storey extensions for semi-detached houses
For homes in Woolston: typical guide from £61,500.
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Two-storey extensions for detached houses
Design, approvals and build for Woolston homes. Guide from £94,500.
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Kitchen extensions with bedrooms above
For homes in Woolston: typical guide from £61,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Guide from £61,500 (plus en-suite) in Woolston, including VAT.
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 Woolston we measure distances to every boundary before suggesting a type.
Also available in Hampshire
- 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 Woolston
Woolston 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 Woolston
Do you cover Woolston?
Yes. We cover Woolston (SO19) and the surrounding area, including Southampton and Portswood. The first site visit is free.
What does a two-storey extension cost in Woolston?
Using our South East 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 £61,500–£83,000 including VAT. An extension over a garage is about £34,500–£50,500.
Which other places near Woolston do you cover?
Everywhere around it, including Southampton (1.4 miles), Portswood (2.4 miles) and Hythe (Hampshire) (2.5 miles), and the rest of Hampshire.