Two-storey extensions in Hampton
Everything for a two-storey extension in Hampton, in one place: types, guide prices for London, the approval rules in England and how to get started.
Hampton at a glance
- Postcode districts
- TW12
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- West Molesey (1.1 miles), East Molesey (1.3 miles), Hanworth (1.5 miles), Teddington (1.7 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.
Around Hampton we also work in West Molesey, East Molesey and Hanworth, and across the rest of Greater London. Postcode district in and near Hampton: TW12.
Extensions available in Hampton
Two-storey rear extensions
Guide from £67,000 in Hampton, including VAT.
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Two-storey side extensions
For homes in Hampton: typical guide from £103,500.
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Two-storey wraparound extensions
Design, approvals and build for Hampton homes. Guide from £144,500.
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Part single, part two-storey extensions
For homes in Hampton: typical guide from £86,500.
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Extensions over a garage
For homes in Hampton: typical guide from £38,000.
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First-floor extensions
Guide from £30,000 in Hampton, including VAT.
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Two-storey extensions for semi-detached houses
From £67,000 in Hampton. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Hampton homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
For homes in Hampton: typical guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
From £67,000 (plus en-suite) in Hampton. Free visit to firm it up.
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in Greater London
- 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 Hampton
Hampton 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 Hampton
Do you cover Hampton?
Yes. We cover Hampton (TW12) and the surrounding area, including West Molesey and East Molesey. The first site visit is free.
What does a two-storey extension cost in Hampton?
Using our London 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 £67,000–£90,500 including VAT. An extension over a garage is about £38,000–£55,000.
Which other places near Hampton do you cover?
Everywhere around it, including West Molesey (1.1 miles), East Molesey (1.3 miles) and Hanworth (1.5 miles), and the rest of Greater London.