Two-storey extensions in Emsworth
Everything for a two-storey extension in Emsworth, in one place: types, guide prices for South East England, the approval rules in England and how to get started.
Emsworth at a glance
- Postcode districts
- PO10
- Area
- West Sussex, England
- Price region
- South East England
- Nearest towns
- Havant (2.2 miles), South Hayling (4.5 miles), Hayling Island (4.6 miles), Waterlooville (4.7 miles)
- Distance to Crawley
- about 37.6 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 Emsworth (PO10) and the places around it, including Havant (2.2 miles), South Hayling (4.5 miles) and Hayling Island.
Extensions available in Emsworth

Two-storey rear extensions
Guide from £61,500 in Emsworth, including VAT.
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Two-storey side extensions
For homes in Emsworth: typical guide from £94,500.
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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
Our South East England guide starts at £79,000 for this type.
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Extensions over a garage
Design, approvals and build for Emsworth homes. Guide from £34,500.
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First-floor extensions
From £27,500 in Emsworth. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Emsworth homes. Guide from £61,500.
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Two-storey extensions for detached houses
Design, approvals and build for Emsworth homes. Guide from £94,500.
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Kitchen extensions with bedrooms above
Emsworth guide price from £61,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Guide from £61,500 (plus en-suite) in Emsworth, including VAT.
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in West 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 Emsworth
Emsworth 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 Emsworth
Do you cover Emsworth?
Yes. We cover Emsworth (PO10) and the surrounding area, including Havant and South Hayling. The first site visit is free.
What does a two-storey extension cost in Emsworth?
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 Emsworth do you cover?
Everywhere around it, including Havant (2.2 miles), South Hayling (4.5 miles) and Hayling Island (4.6 miles), and the rest of West Sussex.