Two-storey extensions in Gillingham
We design, get approval for and build two-storey extensions in Gillingham and the surrounding area. Choose the type of extension below or book a free site visit.
Gillingham at a glance
- Postcode districts
- ME3, ME7 and ME8
- Area
- Kent, England
- Price region
- South East England
- Nearest towns
- Chatham (1.1 miles), Rochester (1.9 miles), Strood (3.1 miles), Snodland (6.1 miles)
- Distance to Maidstone
- about 8.6 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.
Gillingham sits about 8.6 miles from Maidstone. Closer to home, Chatham is 1.1 miles away and Rochester 1.9 miles.
Extensions available in Gillingham
Two-storey rear extensions
Gillingham guide price from £61,500, Standard spec.
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Two-storey side extensions
For homes in Gillingham: typical guide from £94,500.
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Two-storey wraparound extensions
Gillingham guide price from £132,500, Standard spec.
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Part single, part two-storey extensions
Design, approvals and build for Gillingham homes. Guide from £79,000.
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Extensions over a garage
Gillingham guide price from £34,500, Standard spec.
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First-floor extensions
From £27,500 in Gillingham. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Guide from £61,500 in Gillingham, including VAT.
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Two-storey extensions for detached houses
Gillingham guide price from £94,500, Standard spec.
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Kitchen extensions with bedrooms above
Gillingham guide price from £61,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Guide from £61,500 (plus en-suite) in Gillingham, including VAT.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Gillingham, with a rough idea of the approval route and cost for each.
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 Gillingham
Gillingham 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 Gillingham
Do you cover Gillingham?
Yes. We cover Gillingham (ME3, ME7 and ME8) and the surrounding area, including Chatham and Rochester. The first site visit is free.
What does a two-storey extension cost in Gillingham?
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 Gillingham do you cover?
Everywhere around it, including Chatham (1.1 miles), Rochester (1.9 miles) and Strood (3.1 miles), and the rest of Kent.