Two-storey extensions in Leytonstone
Everything for a two-storey extension in Leytonstone, in one place: types, guide prices for London, the approval rules in England and how to get started.
Leytonstone at a glance
- Postcode districts
- E11
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Leyton (0.9 miles), Wanstead (0.9 miles), Snaresbrook (1.2 miles), Walthamstow (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.
Around Leytonstone we also work in Leyton, Wanstead and Snaresbrook, and across the rest of Greater London. Postcode district in and near Leytonstone: E11.
Extensions available in Leytonstone

Two-storey rear extensions
Guide from £67,000 in Leytonstone, including VAT.
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Two-storey side extensions
Our London guide starts at £103,500 for this type.
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Two-storey wraparound extensions
Design, approvals and build for Leytonstone homes. Guide from £144,500.
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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
For homes in Leytonstone: typical guide from £38,000.
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First-floor extensions
Design, approvals and build for Leytonstone homes. Guide from £30,000.
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Two-storey extensions for semi-detached houses
Our London guide starts at £67,000 for this type.
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Two-storey extensions for detached houses
For homes in Leytonstone: typical guide from £103,500.
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Kitchen extensions with bedrooms above
Design, approvals and build for Leytonstone homes. Guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
From £67,000 (plus en-suite) in Leytonstone. Free visit to firm it up.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Leytonstone, with a rough idea of the approval route and cost for each.
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 Leytonstone
Leytonstone 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 Leytonstone
Do you cover Leytonstone?
Yes. We cover Leytonstone (E11) and the surrounding area, including Leyton and Wanstead. The first site visit is free.
What does a two-storey extension cost in Leytonstone?
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 Leytonstone do you cover?
Everywhere around it, including Leyton (0.9 miles), Wanstead (0.9 miles) and Snaresbrook (1.2 miles), and the rest of Greater London.