Two-storey extensions in Stratford
We design, get approval for and build two-storey extensions in Stratford and the surrounding area. Choose the type of extension below or book a free site visit.
Stratford at a glance
- Postcode districts
- E15
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- West Ham (0.7 miles), Bow (0.9 miles), Canning Town (1.6 miles), Leyton (1.8 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 Stratford (E15) and the places around it, including West Ham (0.7 miles), Bow (0.9 miles) and Canning Town.
Extensions available in Stratford
Two-storey rear extensions
For homes in Stratford: typical guide from £67,000.
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Two-storey side extensions
From £103,500 in Stratford. Free visit to firm it up.
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Two-storey wraparound extensions
For homes in Stratford: typical guide from £144,500.
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Part single, part two-storey extensions
Design, approvals and build for Stratford homes. Guide from £86,500.
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Extensions over a garage
Our London guide starts at £38,000 for this type.
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First-floor extensions
Our London guide starts at £30,000 for this type.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Stratford homes. Guide from £67,000.
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Two-storey extensions for detached houses
From £103,500 in Stratford. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Guide from £67,000 (before kitchen units) in Stratford, including VAT.
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Extra bedroom and en-suite extensions
Design, approvals and build for Stratford homes. Guide from £67,000 (plus en-suite).
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 Stratford, 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 Stratford
Stratford 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 Stratford
Do you cover Stratford?
Yes. We cover Stratford (E15) and the surrounding area, including West Ham and Bow. The first site visit is free.
What does a two-storey extension cost in Stratford?
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 Stratford do you cover?
Everywhere around it, including West Ham (0.7 miles), Bow (0.9 miles) and Canning Town (1.6 miles), and the rest of Greater London.