Two-storey extensions in Peacehaven
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Peacehaven.
Peacehaven at a glance
- Postcode districts
- BN10
- Area
- East Sussex, England
- Price region
- South East England
- Nearest towns
- Rottingdean (2.6 miles), Newhaven (2.7 miles), Seaford (5 miles), Lewes (5.7 miles)
- Distance to Brighton
- about 6.3 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 BN10 in and around Peacehaven, along with neighbouring Rottingdean, Newhaven and Seaford.
Extensions available in Peacehaven
Two-storey rear extensions
Design, approvals and build for Peacehaven homes. Guide from £61,500.
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Two-storey side extensions
Guide from £94,500 in Peacehaven, including VAT.
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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
Design, approvals and build for Peacehaven homes. Guide from £79,000.
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Extensions over a garage
Design, approvals and build for Peacehaven homes. Guide from £34,500.
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First-floor extensions
Peacehaven guide price from £27,500, Standard spec.
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Two-storey extensions for semi-detached houses
Guide from £61,500 in Peacehaven, including VAT.
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Two-storey extensions for detached houses
Guide from £94,500 in Peacehaven, including VAT.
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Kitchen extensions with bedrooms above
Guide from £61,500 (before kitchen units) in Peacehaven, including VAT.
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Extra bedroom and en-suite extensions
Guide from £61,500 (plus en-suite) in Peacehaven, including VAT.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Peacehaven, with a rough idea of the approval route and cost for each.
Also available in East Sussex
- 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 Peacehaven
Peacehaven 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 Peacehaven
Do you cover Peacehaven?
Yes. We cover Peacehaven (BN10) and the surrounding area, including Rottingdean and Newhaven. The first site visit is free.
What does a two-storey extension cost in Peacehaven?
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 Peacehaven do you cover?
Everywhere around it, including Rottingdean (2.6 miles), Newhaven (2.7 miles) and Seaford (5 miles), and the rest of East Sussex.