Two-storey extensions in Feltham
Homeowners in Feltham can use us for the whole project or just the drawings and approvals. Start with a free visit.
Feltham at a glance
- Postcode districts
- TW14
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Hanworth (1.6 miles), Cranford (2.1 miles), Ashford (Surrey) (2.1 miles), Hounslow (2.7 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 Feltham (TW14) and the places around it, including Hanworth (1.6 miles), Cranford (2.1 miles) and Ashford (Surrey).
Extensions available in Feltham
Two-storey rear extensions
From £67,000 in Feltham. Free visit to firm it up.
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Two-storey side extensions
Feltham guide price from £103,500, Standard spec.
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Two-storey wraparound extensions
Guide from £144,500 in Feltham, including VAT.
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Part single, part two-storey extensions
Feltham guide price from £86,500, Standard spec.
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Extensions over a garage
Design, approvals and build for Feltham homes. Guide from £38,000.
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First-floor extensions
Guide from £30,000 in Feltham, including VAT.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Feltham homes. Guide from £67,000.
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Two-storey extensions for detached houses
For homes in Feltham: typical guide from £103,500.
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Kitchen extensions with bedrooms above
Design, approvals and build for Feltham homes. Guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Guide from £67,000 (plus en-suite) in Feltham, including VAT.
Learn moreWhich type suits your house?
Which type suits your house in Feltham depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
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 Feltham
Feltham 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 Feltham
Do you cover Feltham?
Yes. We cover Feltham (TW14) and the surrounding area, including Hanworth and Cranford. The first site visit is free.
What does a two-storey extension cost in Feltham?
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 Feltham do you cover?
Everywhere around it, including Hanworth (1.6 miles), Cranford (2.1 miles) and Ashford (Surrey) (2.1 miles), and the rest of Greater London.