Two-storey extensions in Golders Green
Homeowners in Golders Green can use us for the whole project or just the drawings and approvals. Start with a free visit.
Golders Green at a glance
- Postcode districts
- NW4 and NW11
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Cricklewood (1.5 miles), Kilburn (1.7 miles), Hampstead (1.7 miles), Finchley (1.7 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 postcode districts NW4 and NW11 in and around Golders Green, along with neighbouring Cricklewood, Kilburn and Hampstead.
Extensions available in Golders Green

Two-storey rear extensions
Design, approvals and build for Golders Green homes. Guide from £67,000.
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Two-storey side extensions
From £103,500 in Golders Green. Free visit to firm it up.
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Two-storey wraparound extensions
From £144,500 in Golders Green. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £86,500 in Golders Green, including VAT.
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Extensions over a garage
Golders Green guide price from £38,000, Standard spec.
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First-floor extensions
For homes in Golders Green: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Golders Green homes. Guide from £67,000.
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Two-storey extensions for detached houses
From £103,500 in Golders Green. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Guide from £67,000 (before kitchen units) in Golders Green, including VAT.
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Extra bedroom and en-suite extensions
Our London guide starts at £67,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Golders Green we measure distances to every boundary before suggesting a type.
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 Golders Green
Golders Green 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 Golders Green
Do you cover Golders Green?
Yes. We cover Golders Green (NW4 and NW11) and the surrounding area, including Cricklewood and Kilburn. The first site visit is free.
What does a two-storey extension cost in Golders Green?
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 Golders Green do you cover?
Everywhere around it, including Cricklewood (1.5 miles), Kilburn (1.7 miles) and Hampstead (1.7 miles), and the rest of Greater London.