Two-storey extensions in Wembley
Everything for a two-storey extension in Wembley, in one place: types, guide prices for London, the approval rules in England and how to get started.
Wembley at a glance
- Postcode districts
- HA9
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Brent (0.2 miles), Sudbury (Greater London) (1.2 miles), Harrow on the Hill (2.1 miles), Harlesden (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 Wembley (HA9) and the places around it, including Brent (0.2 miles), Sudbury (Greater London) (1.2 miles) and Harrow on the Hill.
Extensions available in Wembley
Two-storey rear extensions
Wembley guide price from £67,000, Standard spec.
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Two-storey side extensions
For homes in Wembley: typical guide from £103,500.
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Two-storey wraparound extensions
Wembley guide price from £144,500, Standard spec.
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Part single, part two-storey extensions
For homes in Wembley: typical guide from £86,500.
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Extensions over a garage
From £38,000 in Wembley. Free visit to firm it up.
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First-floor extensions
For homes in Wembley: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
Guide from £67,000 in Wembley, including VAT.
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Two-storey extensions for detached houses
Our London guide starts at £103,500 for this type.
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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
Design, approvals and build for Wembley homes. Guide from £67,000 (plus en-suite).
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 Wembley
Wembley 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 Wembley
Do you cover Wembley?
Yes. We cover Wembley (HA9) and the surrounding area, including Brent and Sudbury (Greater London). The first site visit is free.
What does a two-storey extension cost in Wembley?
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 Wembley do you cover?
Everywhere around it, including Brent (0.2 miles), Sudbury (Greater London) (1.2 miles) and Harrow on the Hill (2.1 miles), and the rest of Greater London.