Two-storey extensions in Waltham Cross
We design, get approval for and build two-storey extensions in Waltham Cross and the surrounding area. Choose the type of extension below or book a free site visit.
Waltham Cross at a glance
- Postcode districts
- EN8
- Area
- Hertfordshire, England
- Price region
- East of England
- Nearest towns
- Cheshunt (1 mile), Enfield Lock (1.1 miles), Waltham Abbey (1.4 miles), Ponders End (2.9 miles)
- Distance to Watford
- about 15.6 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 Waltham Cross (EN8) and the places around it, including Cheshunt (1.0 miles), Enfield Lock (1.1 miles) and Waltham Abbey.
Extensions available in Waltham Cross

Two-storey rear extensions
From £57,500 in Waltham Cross. Free visit to firm it up.
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Two-storey side extensions
Waltham Cross guide price from £88,500, Standard spec.
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Two-storey wraparound extensions
Design, approvals and build for Waltham Cross homes. Guide from £124,000.
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Part single, part two-storey extensions
Waltham Cross guide price from £74,000, Standard spec.
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Extensions over a garage
Our East of England guide starts at £32,500 for this type.
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First-floor extensions
From £26,000 in Waltham Cross. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
From £57,500 in Waltham Cross. Free visit to firm it up.
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Two-storey extensions for detached houses
Guide from £88,500 in Waltham Cross, including VAT.
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Kitchen extensions with bedrooms above
Guide from £57,500 (before kitchen units) in Waltham Cross, including VAT.
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Extra bedroom and en-suite extensions
From £57,500 (plus en-suite) in Waltham Cross. Free visit to firm it up.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Waltham Cross we also design annexes, home offices and bedrooms over garages.
Also available in Hertfordshire
- 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 Waltham Cross
Waltham Cross 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 Waltham Cross
Do you cover Waltham Cross?
Yes. We cover Waltham Cross (EN8) and the surrounding area, including Cheshunt and Enfield Lock. The first site visit is free.
What does a two-storey extension cost in Waltham Cross?
Using our East of 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 £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Waltham Cross do you cover?
Everywhere around it, including Cheshunt (1 mile), Enfield Lock (1.1 miles) and Waltham Abbey (1.4 miles), and the rest of Hertfordshire.