Two-storey extensions in Belmont (Greater London)
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Belmont (Greater London).
Belmont (Greater London) at a glance
- Postcode districts
- SM2
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Sutton (0.5 miles), Banstead (1.5 miles), Cheam (1.5 miles), Ewell (2.2 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 SM2 in and around Belmont (Greater London), along with neighbouring Sutton, Banstead and Cheam.
Extensions available in Belmont (Greater London)
Two-storey rear extensions
From £67,000 in Belmont (Greater London). Free visit to firm it up.
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Two-storey side extensions
For homes in Belmont (Greater London): typical guide from £103,500.
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Two-storey wraparound extensions
From £144,500 in Belmont (Greater London). Free visit to firm it up.
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Part single, part two-storey extensions
Our London guide starts at £86,500 for this type.
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Extensions over a garage
Design, approvals and build for Belmont (Greater London) homes. Guide from £38,000.
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First-floor extensions
From £30,000 in Belmont (Greater London). Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Belmont (Greater London) homes. Guide from £67,000.
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Two-storey extensions for detached houses
Guide from £103,500 in Belmont (Greater London), including VAT.
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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?
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 Belmont (Greater London)
Belmont (Greater London) 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 Belmont (Greater London)
Do you cover Belmont (Greater London)?
Yes. We cover Belmont (Greater London) (SM2) and the surrounding area, including Sutton and Banstead. The first site visit is free.
What does a two-storey extension cost in Belmont (Greater London)?
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 Belmont (Greater London) do you cover?
Everywhere around it, including Sutton (0.5 miles), Banstead (1.5 miles) and Cheam (1.5 miles), and the rest of Greater London.