Two-storey extensions in Enfield Lock
Need more room in Enfield Lock? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Enfield Lock at a glance
- Postcode districts
- EN3
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Waltham Cross (1.1 miles), Waltham Abbey (1.5 miles), Ponders End (2 miles), Cheshunt (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 Enfield Lock we also work in Waltham Cross, Waltham Abbey and Ponders End, and across the rest of Greater London. Postcode district in and near Enfield Lock: EN3.
Extensions available in Enfield Lock
Two-storey rear extensions
Enfield Lock guide price from £67,000, Standard spec.
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Two-storey side extensions
Our London guide starts at £103,500 for this type.
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Two-storey wraparound extensions
From £144,500 in Enfield Lock. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £86,500 in Enfield Lock, including VAT.
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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
Enfield Lock guide price from £30,000, Standard spec.
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Two-storey extensions for semi-detached houses
Guide from £67,000 in Enfield Lock, including VAT.
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Two-storey extensions for detached houses
Design, approvals and build for Enfield Lock homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
Guide from £67,000 (before kitchen units) in Enfield Lock, including VAT.
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Extra bedroom and en-suite extensions
For homes in Enfield Lock: typical guide from £67,000 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Enfield Lock 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 Enfield Lock
Enfield Lock 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 Enfield Lock
Do you cover Enfield Lock?
Yes. We cover Enfield Lock (EN3) and the surrounding area, including Waltham Cross and Waltham Abbey. The first site visit is free.
What does a two-storey extension cost in Enfield Lock?
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 Enfield Lock do you cover?
Everywhere around it, including Waltham Cross (1.1 miles), Waltham Abbey (1.5 miles) and Ponders End (2 miles), and the rest of Greater London.