Two-storey extensions in Surbiton
We design, get approval for and build two-storey extensions in Surbiton and the surrounding area. Choose the type of extension below or book a free site visit.
Surbiton at a glance
- Postcode districts
- KT5 and KT6
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Tolworth (1.1 miles), Kingston upon Thames (1.5 miles), Norbiton (1.5 miles), Hook (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.
We cover Surbiton (KT5 and KT6) and the places around it, including Tolworth (1.1 miles), Kingston upon Thames (1.5 miles) and Norbiton.
Extensions available in Surbiton
Two-storey rear extensions
Our London guide starts at £67,000 for this type.
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Two-storey side extensions
Guide from £103,500 in Surbiton, including VAT.
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Two-storey wraparound extensions
Surbiton guide price from £144,500, Standard spec.
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Part single, part two-storey extensions
Guide from £86,500 in Surbiton, including VAT.
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Extensions over a garage
Guide from £38,000 in Surbiton, including VAT.
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First-floor extensions
Surbiton guide price from £30,000, Standard spec.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Surbiton homes. Guide from £67,000.
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Two-storey extensions for detached houses
From £103,500 in Surbiton. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Our London guide starts at £67,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Our London guide starts at £67,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Surbiton we also design annexes, home offices and bedrooms over garages.
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 Surbiton
Surbiton 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 Surbiton
Do you cover Surbiton?
Yes. We cover Surbiton (KT5 and KT6) and the surrounding area, including Tolworth and Kingston upon Thames. The first site visit is free.
What does a two-storey extension cost in Surbiton?
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 Surbiton do you cover?
Everywhere around it, including Tolworth (1.1 miles), Kingston upon Thames (1.5 miles) and Norbiton (1.5 miles), and the rest of Greater London.