Two-storey extensions in Rustington
Need more room in Rustington? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Rustington at a glance
- Postcode districts
- BN16
- Area
- West Sussex, England
- Price region
- South East England
- Nearest towns
- Littlehampton (1.5 miles), Worthing (5.8 miles), Barnham (5.9 miles), Westergate (7.5 miles)
- Distance to Crawley
- about 25.2 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.
We cover Rustington (BN16) and the places around it, including Littlehampton (1.5 miles), Worthing (5.8 miles) and Barnham.
Extensions available in Rustington
Two-storey rear extensions
For homes in Rustington: typical guide from £61,500.
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Two-storey side extensions
Rustington guide price from £94,500, Standard spec.
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Two-storey wraparound extensions
Guide from £132,500 in Rustington, including VAT.
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Part single, part two-storey extensions
Guide from £79,000 in Rustington, including VAT.
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Extensions over a garage
Our South East England guide starts at £34,500 for this type.
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First-floor extensions
Our South East England guide starts at £27,500 for this type.
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Two-storey extensions for semi-detached houses
From £61,500 in Rustington. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Rustington homes. Guide from £94,500.
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Kitchen extensions with bedrooms above
From £61,500 (before kitchen units) in Rustington. Free visit to firm it up.
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Extra bedroom and en-suite extensions
From £61,500 (plus en-suite) in Rustington. Free visit to firm it up.
Learn moreWhich type suits your house?
Which type suits your house in Rustington 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 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 Rustington
Rustington 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 Rustington
Do you cover Rustington?
Yes. We cover Rustington (BN16) and the surrounding area, including Littlehampton and Worthing. The first site visit is free.
What does a two-storey extension cost in Rustington?
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 Rustington do you cover?
Everywhere around it, including Littlehampton (1.5 miles), Worthing (5.8 miles) and Barnham (5.9 miles), and the rest of West Sussex.