Two-storey extensions in Romford
Homeowners in Romford can use us for the whole project or just the drawings and approvals. Start with a free visit.
Romford at a glance
- Postcode districts
- RM1, RM2 and RM7
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Hornchurch (1.8 miles), Collier Row (1.9 miles), Dagenham (1.9 miles), Emerson Park (2 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 Romford we also work in Hornchurch, Collier Row and Dagenham, and across the rest of Greater London. Postcode districts in and near Romford: RM1, RM2 and RM7.
Extensions available in Romford
Two-storey rear extensions
Our London guide starts at £67,000 for this type.
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Two-storey side extensions
For homes in Romford: typical guide from £103,500.
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Two-storey wraparound extensions
Romford guide price from £144,500, Standard spec.
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Part single, part two-storey extensions
From £86,500 in Romford. Free visit to firm it up.
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Extensions over a garage
Romford guide price from £38,000, Standard spec.
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First-floor extensions
For homes in Romford: typical guide from £30,000.
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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
Guide from £103,500 in Romford, including VAT.
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Kitchen extensions with bedrooms above
Our London guide starts at £67,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Guide from £67,000 (plus en-suite) in Romford, including VAT.
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 Romford 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 Romford
Romford 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 Romford
Do you cover Romford?
Yes. We cover Romford (RM1, RM2 and RM7) and the surrounding area, including Hornchurch and Collier Row. The first site visit is free.
What does a two-storey extension cost in Romford?
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 Romford do you cover?
Everywhere around it, including Hornchurch (1.8 miles), Collier Row (1.9 miles) and Dagenham (1.9 miles), and the rest of Greater London.