Two-storey extensions in Whitstable
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Whitstable.
Whitstable at a glance
- Postcode districts
- CT5
- Area
- Kent, England
- Price region
- South East England
- Nearest towns
- Herne Bay (4.5 miles), Canterbury (6.1 miles), Faversham (6.7 miles), Birchington-on-Sea (12.1 miles)
- Distance to Maidstone
- about 22.9 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 CT5 in and around Whitstable, along with neighbouring Herne Bay, Canterbury and Faversham.
Extensions available in Whitstable
Two-storey rear extensions
For homes in Whitstable: typical guide from £61,500.
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Two-storey side extensions
Our South East England guide starts at £94,500 for this type.
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Two-storey wraparound extensions
Whitstable guide price from £132,500, Standard spec.
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Part single, part two-storey extensions
Guide from £79,000 in Whitstable, 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
Guide from £27,500 in Whitstable, including VAT.
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Two-storey extensions for semi-detached houses
For homes in Whitstable: typical guide from £61,500.
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Two-storey extensions for detached houses
Design, approvals and build for Whitstable homes. Guide from £94,500.
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Kitchen extensions with bedrooms above
Design, approvals and build for Whitstable homes. Guide from £61,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Whitstable guide price from £61,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Whitstable we measure distances to every boundary before suggesting a type.
Also available in Kent
- 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 Whitstable
Whitstable 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 Whitstable
Do you cover Whitstable?
Yes. We cover Whitstable (CT5) and the surrounding area, including Herne Bay and Canterbury. The first site visit is free.
What does a two-storey extension cost in Whitstable?
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 Whitstable do you cover?
Everywhere around it, including Herne Bay (4.5 miles), Canterbury (6.1 miles) and Faversham (6.7 miles), and the rest of Kent.