Two-storey extensions in Stepney
Everything for a two-storey extension in Stepney, in one place: types, guide prices for London, the approval rules in England and how to get started.
Stepney at a glance
- Postcode districts
- E1
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Limehouse (0.5 miles), Shadwell (0.7 miles), Whitechapel (1 mile), Bethnal Green (1 mile)
- 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 Stepney we also work in Limehouse, Shadwell and Whitechapel, and across the rest of Greater London. Postcode district in and near Stepney: E1.
Extensions available in Stepney

Two-storey rear extensions
From £67,000 in Stepney. Free visit to firm it up.
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Two-storey side extensions
For homes in Stepney: typical guide from £103,500.
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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
Guide from £86,500 in Stepney, including VAT.
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Extensions over a garage
Guide from £38,000 in Stepney, including VAT.
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First-floor extensions
From £30,000 in Stepney. Free visit to firm it up.
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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
Design, approvals and build for Stepney homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
Guide from £67,000 (before kitchen units) in Stepney, including VAT.
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Extra bedroom and en-suite extensions
Stepney guide price from £67,000 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Stepney we measure distances to every boundary before suggesting a type.
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 Stepney
Stepney 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 Stepney
Do you cover Stepney?
Yes. We cover Stepney (E1) and the surrounding area, including Limehouse and Shadwell. The first site visit is free.
What does a two-storey extension cost in Stepney?
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 Stepney do you cover?
Everywhere around it, including Limehouse (0.5 miles), Shadwell (0.7 miles) and Whitechapel (1 mile), and the rest of Greater London.