Two-storey extensions in Camden Town
We design, get approval for and build two-storey extensions in Camden Town and the surrounding area. Choose the type of extension below or book a free site visit.
Camden Town at a glance
- Postcode districts
- NW1
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Chalk Farm (0.3 miles), King's Cross (1.1 miles), Holloway (1.1 miles), Barnsbury (1.1 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 postcode district NW1 in and around Camden Town, along with neighbouring Chalk Farm, King's Cross and Holloway.
Extensions available in Camden Town

Two-storey rear extensions
Guide from £67,000 in Camden Town, including VAT.
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Two-storey side extensions
From £103,500 in Camden Town. Free visit to firm it up.
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Two-storey wraparound extensions
From £144,500 in Camden Town. Free visit to firm it up.
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Part single, part two-storey extensions
For homes in Camden Town: typical 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
For homes in Camden Town: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
Camden Town guide price from £67,000, Standard spec.
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Two-storey extensions for detached houses
Camden Town guide price from £103,500, Standard spec.
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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
Camden Town guide price from £67,000 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in Camden Town 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 Camden Town
Camden Town 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 Camden Town
Do you cover Camden Town?
Yes. We cover Camden Town (NW1) and the surrounding area, including Chalk Farm and King's Cross. The first site visit is free.
What does a two-storey extension cost in Camden Town?
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 Camden Town do you cover?
Everywhere around it, including Chalk Farm (0.3 miles), King's Cross (1.1 miles) and Holloway (1.1 miles), and the rest of Greater London.