Two-storey extensions in Chalk Farm
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Chalk Farm.
Chalk Farm at a glance
- Postcode districts
- NW5
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Camden Town (0.3 miles), Belsize Park (1 mile), Holloway (1.2 miles), Barnsbury (1.4 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 Chalk Farm we also work in Camden Town, Belsize Park and Holloway, and across the rest of Greater London. Postcode district in and near Chalk Farm: NW5.
Extensions available in Chalk Farm
Two-storey rear extensions
Guide from £67,000 in Chalk Farm, including VAT.
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Two-storey side extensions
From £103,500 in Chalk Farm. Free visit to firm it up.
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Two-storey wraparound extensions
Design, approvals and build for Chalk Farm homes. Guide from £144,500.
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Part single, part two-storey extensions
Chalk Farm guide price from £86,500, Standard spec.
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Extensions over a garage
From £38,000 in Chalk Farm. Free visit to firm it up.
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First-floor extensions
For homes in Chalk Farm: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
Chalk Farm guide price from £67,000, Standard spec.
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Two-storey extensions for detached houses
Design, approvals and build for Chalk Farm homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
Design, approvals and build for Chalk Farm homes. Guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
From £67,000 (plus en-suite) in Chalk Farm. Free visit to firm it up.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Greater London, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Chalk Farm
Chalk Farm 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 Chalk Farm
Do you cover Chalk Farm?
Yes. We cover Chalk Farm (NW5) and the surrounding area, including Camden Town and Belsize Park. The first site visit is free.
What does a two-storey extension cost in Chalk Farm?
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 Chalk Farm do you cover?
Everywhere around it, including Camden Town (0.3 miles), Belsize Park (1 mile) and Holloway (1.2 miles), and the rest of Greater London.