Two-storey extensions in Gravesend
Need more room in Gravesend? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Gravesend at a glance
- Postcode districts
- DA11 and DA12
- Area
- Kent, England
- Price region
- South East England
- Nearest towns
- Tilbury (1.5 miles), Swanscombe (2.6 miles), Chadwell St Mary (2.7 miles), Grays (3 miles)
- Distance to Maidstone
- about 13.7 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 Gravesend (DA11 and DA12) and the places around it, including Tilbury (1.5 miles), Swanscombe (2.6 miles) and Chadwell St Mary.
Extensions available in Gravesend
Two-storey rear extensions
Guide from £61,500 in Gravesend, including VAT.
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Two-storey side extensions
Design, approvals and build for Gravesend homes. Guide from £94,500.
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Two-storey wraparound extensions
Gravesend guide price from £132,500, Standard spec.
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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 Gravesend homes. Guide from £34,500.
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First-floor extensions
For homes in Gravesend: typical guide from £27,500.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Gravesend homes. Guide from £61,500.
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Two-storey extensions for detached houses
For homes in Gravesend: typical guide from £94,500.
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Kitchen extensions with bedrooms above
Guide from £61,500 (before kitchen units) in Gravesend, including VAT.
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Extra bedroom and en-suite extensions
Gravesend guide price from £61,500 (plus en-suite), Standard spec.
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 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 Gravesend
Gravesend 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 Gravesend
Do you cover Gravesend?
Yes. We cover Gravesend (DA11 and DA12) and the surrounding area, including Tilbury and Swanscombe. The first site visit is free.
What does a two-storey extension cost in Gravesend?
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 Gravesend do you cover?
Everywhere around it, including Tilbury (1.5 miles), Swanscombe (2.6 miles) and Chadwell St Mary (2.7 miles), and the rest of Kent.