Two-storey extensions in Leatherhead
Homeowners in Leatherhead can use us for the whole project or just the drawings and approvals. Start with a free visit.
Leatherhead at a glance
- Postcode districts
- KT22
- Area
- Surrey, England
- Price region
- South East England
- Nearest towns
- Ashtead (1.7 miles), Great Bookham (2.1 miles), Epsom (3.6 miles), Cobham (4.1 miles)
- Distance to Woking
- about 9.8 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 Leatherhead we also work in Ashtead, Great Bookham and Epsom, and across the rest of Surrey. Postcode district in and near Leatherhead: KT22.
Extensions available in Leatherhead

Two-storey rear extensions
Our South East England guide starts at £61,500 for this type.
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Two-storey side extensions
From £94,500 in Leatherhead. Free visit to firm it up.
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Two-storey wraparound extensions
Our South East England guide starts at £132,500 for this type.
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Part single, part two-storey extensions
Leatherhead guide price from £79,000, Standard spec.
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Extensions over a garage
Our South East England guide starts at £34,500 for this type.
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First-floor extensions
Leatherhead guide price from £27,500, Standard spec.
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Two-storey extensions for semi-detached houses
Our South East England guide starts at £61,500 for this type.
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Two-storey extensions for detached houses
Guide from £94,500 in Leatherhead, including VAT.
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Kitchen extensions with bedrooms above
Guide from £61,500 (before kitchen units) in Leatherhead, including VAT.
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Extra bedroom and en-suite extensions
From £61,500 (plus en-suite) in Leatherhead. 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 Surrey, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
Also available in Surrey
- 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 Leatherhead
Leatherhead 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 Leatherhead
Do you cover Leatherhead?
Yes. We cover Leatherhead (KT22) and the surrounding area, including Ashtead and Great Bookham. The first site visit is free.
What does a two-storey extension cost in Leatherhead?
Using our South East England 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 £61,500–£83,000 including VAT. An extension over a garage is about £34,500–£50,500.
Which other places near Leatherhead do you cover?
Everywhere around it, including Ashtead (1.7 miles), Great Bookham (2.1 miles) and Epsom (3.6 miles), and the rest of Surrey.