Two-storey extensions in Acton
Homeowners in Acton can use us for the whole project or just the drawings and approvals. Start with a free visit.
Acton at a glance
- Postcode districts
- W3
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Ealing Common (0.8 miles), Chiswick (1.4 miles), Ealing (1.4 miles), Kew (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 Acton we also work in Ealing Common, Chiswick and Ealing, and across the rest of Greater London. Postcode district in and near Acton: W3.
Extensions available in Acton
Two-storey rear extensions
For homes in Acton: typical guide from £67,000.
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Two-storey side extensions
Acton guide price from £103,500, Standard spec.
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Two-storey wraparound extensions
For homes in Acton: typical 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
Guide from £38,000 in Acton, including VAT.
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First-floor extensions
For homes in Acton: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
From £67,000 in Acton. Free visit to firm it up.
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Two-storey extensions for detached houses
For homes in Acton: typical guide from £103,500.
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Kitchen extensions with bedrooms above
Design, approvals and build for Acton homes. Guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Our London guide starts at £67,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Acton we also design annexes, home offices and bedrooms over garages.
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 Acton
Acton 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 Acton
Do you cover Acton?
Yes. We cover Acton (W3) and the surrounding area, including Ealing Common and Chiswick. The first site visit is free.
What does a two-storey extension cost in Acton?
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 Acton do you cover?
Everywhere around it, including Ealing Common (0.8 miles), Chiswick (1.4 miles) and Ealing (1.4 miles), and the rest of Greater London.