Two-storey extensions in Totton
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Totton.
Totton at a glance
- Postcode districts
- SO40 and SO43
- Area
- Hampshire, England
- Price region
- South East England
- Nearest towns
- Southampton (3.9 miles), Portswood (4.4 miles), Romsey (4.9 miles), Woolston (5.2 miles)
- Distance to Southampton
- about 3.9 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 Totton we also work in Southampton, Portswood and Romsey, and across the rest of Hampshire. Postcode districts in and near Totton: SO40 and SO43.
Extensions available in Totton

Two-storey rear extensions
From £61,500 in Totton. Free visit to firm it up.
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Two-storey side extensions
Design, approvals and build for Totton homes. Guide from £94,500.
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Two-storey wraparound extensions
From £132,500 in Totton. Free visit to firm it up.
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Part single, part two-storey extensions
From £79,000 in Totton. Free visit to firm it up.
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Extensions over a garage
From £34,500 in Totton. Free visit to firm it up.
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First-floor extensions
Guide from £27,500 in Totton, including VAT.
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Two-storey extensions for semi-detached houses
Our South East England guide starts at £61,500 for this type.
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Two-storey extensions for detached houses
Guide from £94,500 in Totton, including VAT.
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Kitchen extensions with bedrooms above
From £61,500 (before kitchen units) in Totton. Free visit to firm it up.
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Extra bedroom and en-suite extensions
For homes in Totton: typical guide from £61,500 (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 Totton 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 Totton
Totton 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 Totton
Do you cover Totton?
Yes. We cover Totton (SO40 and SO43) and the surrounding area, including Southampton and Portswood. The first site visit is free.
What does a two-storey extension cost in Totton?
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 Totton do you cover?
Everywhere around it, including Southampton (3.9 miles), Portswood (4.4 miles) and Romsey (4.9 miles), and the rest of Hampshire.