Two-storey extensions in Wanstead
Need more room in Wanstead? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Wanstead at a glance
- Postcode districts
- E11
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Snaresbrook (0.6 miles), Leytonstone (0.9 miles), Leyton (1.8 miles), Barkingside (1.9 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 Wanstead we also work in Snaresbrook, Leytonstone and Leyton, and across the rest of Greater London. Postcode district in and near Wanstead: E11.
Extensions available in Wanstead

Two-storey rear extensions
From £67,000 in Wanstead. Free visit to firm it up.
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Two-storey side extensions
From £103,500 in Wanstead. Free visit to firm it up.
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Two-storey wraparound extensions
Our London guide starts at £144,500 for this type.
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Part single, part two-storey extensions
Wanstead guide price from £86,500, Standard spec.
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Extensions over a garage
Wanstead guide price from £38,000, Standard spec.
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First-floor extensions
For homes in Wanstead: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
From £67,000 in Wanstead. Free visit to firm it up.
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Two-storey extensions for detached houses
Guide from £103,500 in Wanstead, including VAT.
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Kitchen extensions with bedrooms above
Design, approvals and build for Wanstead homes. Guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Wanstead guide price from £67,000 (plus en-suite), Standard spec.
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 Wanstead
Wanstead 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 Wanstead
Do you cover Wanstead?
Yes. We cover Wanstead (E11) and the surrounding area, including Snaresbrook and Leytonstone. The first site visit is free.
What does a two-storey extension cost in Wanstead?
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 Wanstead do you cover?
Everywhere around it, including Snaresbrook (0.6 miles), Leytonstone (0.9 miles) and Leyton (1.8 miles), and the rest of Greater London.