Two-storey extensions in Chatham
Need more room in Chatham? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Chatham at a glance
- Postcode districts
- ME4 and ME5
- Area
- Kent, England
- Price region
- South East England
- Nearest towns
- Rochester (1.1 miles), Gillingham (1.1 miles), Strood (2.4 miles), Snodland (5 miles)
- Distance to Maidstone
- about 7.8 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 Chatham (ME4 and ME5) and the places around it, including Rochester (1.1 miles), Gillingham (1.1 miles) and Strood.
Extensions available in Chatham
Two-storey rear extensions
Chatham guide price from £61,500, Standard spec.
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Two-storey side extensions
Guide from £94,500 in Chatham, including VAT.
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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
For homes in Chatham: typical guide from £79,000.
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Extensions over a garage
Chatham guide price from £34,500, Standard spec.
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First-floor extensions
Guide from £27,500 in Chatham, including VAT.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Chatham homes. Guide from £61,500.
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Two-storey extensions for detached houses
For homes in Chatham: typical guide from £94,500.
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Kitchen extensions with bedrooms above
Our South East England guide starts at £61,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
From £61,500 (plus en-suite) in Chatham. Free visit to firm it up.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Chatham we also design annexes, home offices and bedrooms over garages.
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 Chatham
Chatham 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 Chatham
Do you cover Chatham?
Yes. We cover Chatham (ME4 and ME5) and the surrounding area, including Rochester and Gillingham. The first site visit is free.
What does a two-storey extension cost in Chatham?
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 Chatham do you cover?
Everywhere around it, including Rochester (1.1 miles), Gillingham (1.1 miles) and Strood (2.4 miles), and the rest of Kent.