Two-storey extensions in Hastings
We design, get approval for and build two-storey extensions in Hastings and the surrounding area. Choose the type of extension below or book a free site visit.
Hastings at a glance
- Postcode districts
- TN31, TN34, TN35 and TN36
- Area
- East Sussex, England
- Price region
- South East England
- Nearest towns
- St Leonards-on-Sea (1.5 miles), Bexhill-on-Sea (4.8 miles), Hailsham (14.1 miles), Eastbourne (14.2 miles)
- Distance to Brighton
- about 31.5 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 Hastings (TN31, TN34, TN35 and TN36) and the places around it, including St Leonards-on-Sea (1.5 miles), Bexhill-on-Sea (4.8 miles) and Hailsham.
Extensions available in Hastings
Two-storey rear extensions
For homes in Hastings: typical guide from £61,500.
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Two-storey side extensions
Guide from £94,500 in Hastings, including VAT.
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Two-storey wraparound extensions
Guide from £132,500 in Hastings, including VAT.
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Part single, part two-storey extensions
From £79,000 in Hastings. Free visit to firm it up.
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Extensions over a garage
From £34,500 in Hastings. Free visit to firm it up.
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First-floor extensions
Guide from £27,500 in Hastings, including VAT.
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Two-storey extensions for semi-detached houses
Guide from £61,500 in Hastings, including VAT.
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Two-storey extensions for detached houses
For homes in Hastings: typical guide from £94,500.
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Kitchen extensions with bedrooms above
For homes in Hastings: typical guide from £61,500 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Hastings: typical guide from £61,500 (plus en-suite).
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 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 Hastings
Hastings 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 Hastings
Do you cover Hastings?
Yes. We cover Hastings (TN31, TN34, TN35 and TN36) and the surrounding area, including St Leonards-on-Sea and Bexhill-on-Sea. The first site visit is free.
What does a two-storey extension cost in Hastings?
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 Hastings do you cover?
Everywhere around it, including St Leonards-on-Sea (1.5 miles), Bexhill-on-Sea (4.8 miles) and Hailsham (14.1 miles), and the rest of East Sussex.