Two-storey extensions in Greenford
Need more room in Greenford? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Greenford at a glance
- Postcode districts
- UB6
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Northolt (1.5 miles), Southall (1.5 miles), West Ealing (1.7 miles), Ealing (2.3 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 Greenford (UB6) and the places around it, including Northolt (1.5 miles), Southall (1.5 miles) and West Ealing.
Extensions available in Greenford
Two-storey rear extensions
Design, approvals and build for Greenford homes. Guide from £67,000.
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Two-storey side extensions
For homes in Greenford: typical guide from £103,500.
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Two-storey wraparound extensions
From £144,500 in Greenford. Free visit to firm it up.
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Part single, part two-storey extensions
Design, approvals and build for Greenford 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 Greenford homes. Guide from £67,000.
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Two-storey extensions for detached houses
Greenford guide price from £103,500, Standard spec.
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Kitchen extensions with bedrooms above
For homes in Greenford: typical guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Greenford 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 Greenford
Greenford 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 Greenford
Do you cover Greenford?
Yes. We cover Greenford (UB6) and the surrounding area, including Northolt and Southall. The first site visit is free.
What does a two-storey extension cost in Greenford?
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 Greenford do you cover?
Everywhere around it, including Northolt (1.5 miles), Southall (1.5 miles) and West Ealing (1.7 miles), and the rest of Greater London.