Two-storey extensions in Hythe (Hampshire)
Everything for a two-storey extension in Hythe (Hampshire), in one place: types, guide prices for South East England, the approval rules in England and how to get started.
Hythe (Hampshire) at a glance
- Postcode districts
- SO45
- Area
- Hampshire, England
- Price region
- South East England
- Nearest towns
- Woolston (2.5 miles), Southampton (3 miles), Portswood (4.7 miles), Totton (5.6 miles)
- Distance to Southampton
- about 3 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 SO45 in and around Hythe (Hampshire), along with neighbouring Woolston, Southampton and Portswood.
Extensions available in Hythe (Hampshire)
Two-storey rear extensions
Guide from £61,500 in Hythe (Hampshire), including VAT.
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Two-storey side extensions
From £94,500 in Hythe (Hampshire). Free visit to firm it up.
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Two-storey wraparound extensions
Guide from £132,500 in Hythe (Hampshire), including VAT.
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Part single, part two-storey extensions
Guide from £79,000 in Hythe (Hampshire), including VAT.
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Extensions over a garage
Our South East England guide starts at £34,500 for this type.
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First-floor extensions
From £27,500 in Hythe (Hampshire). Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Guide from £61,500 in Hythe (Hampshire), including VAT.
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Two-storey extensions for detached houses
From £94,500 in Hythe (Hampshire). Free visit to firm it up.
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Kitchen extensions with bedrooms above
Hythe (Hampshire) guide price from £61,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Hythe (Hampshire) guide price from £61,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in Hythe (Hampshire) 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 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 Hythe (Hampshire)
Hythe (Hampshire) 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 Hythe (Hampshire)
Do you cover Hythe (Hampshire)?
Yes. We cover Hythe (Hampshire) (SO45) and the surrounding area, including Woolston and Southampton. The first site visit is free.
What does a two-storey extension cost in Hythe (Hampshire)?
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 Hythe (Hampshire) do you cover?
Everywhere around it, including Woolston (2.5 miles), Southampton (3 miles) and Portswood (4.7 miles), and the rest of Hampshire.