Two-storey extensions in Tolworth
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Tolworth.
Tolworth at a glance
- Postcode districts
- KT5
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Surbiton (1.1 miles), Hook (1.4 miles), Chessington (1.6 miles), Worcester Park (1.6 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 KT5 in and around Tolworth, along with neighbouring Surbiton, Hook and Chessington.
Extensions available in Tolworth
Two-storey rear extensions
Guide from £67,000 in Tolworth, including VAT.
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Two-storey side extensions
For homes in Tolworth: typical guide from £103,500.
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Two-storey wraparound extensions
Guide from £144,500 in Tolworth, including VAT.
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Part single, part two-storey extensions
For homes in Tolworth: typical guide from £86,500.
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Extensions over a garage
From £38,000 in Tolworth. Free visit to firm it up.
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First-floor extensions
From £30,000 in Tolworth. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Tolworth guide price from £67,000, Standard spec.
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Two-storey extensions for detached houses
Design, approvals and build for Tolworth homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
From £67,000 (before kitchen units) in Tolworth. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Guide from £67,000 (plus en-suite) in Tolworth, including VAT.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Greater London, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Tolworth
Tolworth 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 Tolworth
Do you cover Tolworth?
Yes. We cover Tolworth (KT5) and the surrounding area, including Surbiton and Hook. The first site visit is free.
What does a two-storey extension cost in Tolworth?
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 Tolworth do you cover?
Everywhere around it, including Surbiton (1.1 miles), Hook (1.4 miles) and Chessington (1.6 miles), and the rest of Greater London.