Two-storey extensions in Waterlooville
Everything for a two-storey extension in Waterlooville, in one place: types, guide prices for South East England, the approval rules in England and how to get started.
Waterlooville at a glance
- Postcode districts
- PO7 and PO8
- Area
- Hampshire, England
- Price region
- South East England
- Nearest towns
- Havant (2.6 miles), Cosham (2.8 miles), Emsworth (4.7 miles), Portsmouth (6.2 miles)
- Distance to Southampton
- about 16.4 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 districts PO7 and PO8 in and around Waterlooville, along with neighbouring Havant, Cosham and Emsworth.
Extensions available in Waterlooville
Two-storey rear extensions
Waterlooville guide price from £61,500, Standard spec.
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Two-storey side extensions
Guide from £94,500 in Waterlooville, including VAT.
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Two-storey wraparound extensions
From £132,500 in Waterlooville. Free visit to firm it up.
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Part single, part two-storey extensions
Waterlooville guide price from £79,000, Standard spec.
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Extensions over a garage
Design, approvals and build for Waterlooville homes. Guide from £34,500.
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First-floor extensions
Our South East England guide starts at £27,500 for this type.
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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
For homes in Waterlooville: typical guide from £94,500.
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Kitchen extensions with bedrooms above
Guide from £61,500 (before kitchen units) in Waterlooville, including VAT.
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Extra bedroom and en-suite extensions
From £61,500 (plus en-suite) in Waterlooville. Free visit to firm it up.
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 Waterlooville 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 Waterlooville
Waterlooville 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 Waterlooville
Do you cover Waterlooville?
Yes. We cover Waterlooville (PO7 and PO8) and the surrounding area, including Havant and Cosham. The first site visit is free.
What does a two-storey extension cost in Waterlooville?
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 Waterlooville do you cover?
Everywhere around it, including Havant (2.6 miles), Cosham (2.8 miles) and Emsworth (4.7 miles), and the rest of Hampshire.