Two-storey extensions in Maidstone
Need more room in Maidstone? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Maidstone at a glance
- Postcode districts
- ME14, ME15, ME16, ME17, ME18 and TN12
- Area
- Kent, England
- Price region
- South East England
- Nearest towns
- Snodland (5.4 miles), Chatham (7.8 miles), Rochester (8.4 miles), Gillingham (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.
Around Maidstone we also work in Snodland, Chatham and Rochester, and across the rest of Kent. Postcode districts in and near Maidstone: ME14, ME15, ME16, ME17, ME18 and TN12.
Extensions available in Maidstone
Two-storey rear extensions
For homes in Maidstone: typical guide from £61,500.
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Two-storey side extensions
From £94,500 in Maidstone. Free visit to firm it up.
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Two-storey wraparound extensions
From £132,500 in Maidstone. Free visit to firm it up.
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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
Guide from £34,500 in Maidstone, including VAT.
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First-floor extensions
For homes in Maidstone: typical guide from £27,500.
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Two-storey extensions for semi-detached houses
From £61,500 in Maidstone. Free visit to firm it up.
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Two-storey extensions for detached houses
From £94,500 in Maidstone. Free visit to firm it up.
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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
For homes in Maidstone: typical guide from £61,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Maidstone 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 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 Maidstone
Maidstone 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 Maidstone
Do you cover Maidstone?
Yes. We cover Maidstone (ME14, ME15, ME16, ME17, ME18 and TN12) and the surrounding area, including Snodland and Chatham. The first site visit is free.
What does a two-storey extension cost in Maidstone?
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 Maidstone do you cover?
Everywhere around it, including Snodland (5.4 miles), Chatham (7.8 miles) and Rochester (8.4 miles), and the rest of Kent.