Two-storey extensions in Denton
Homeowners in Denton can use us for the whole project or just the drawings and approvals. Start with a free visit.
Denton at a glance
- Postcode districts
- M34
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Hyde (1.6 miles), Dukinfield (1.8 miles), Droylsden (2 miles), Ashton-under-Lyne (2.3 miles)
- Distance to Manchester
- about 5.2 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 M34 in and around Denton, along with neighbouring Hyde, Dukinfield and Droylsden.
Extensions available in Denton
Two-storey rear extensions
From £53,000 in Denton. Free visit to firm it up.
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Two-storey side extensions
Guide from £82,000 in Denton, including VAT.
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Two-storey wraparound extensions
Design, approvals and build for Denton homes. Guide from £114,500.
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Part single, part two-storey extensions
For homes in Denton: typical guide from £68,500.
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Extensions over a garage
Design, approvals and build for Denton homes. Guide from £30,000.
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First-floor extensions
Guide from £24,000 in Denton, including VAT.
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Two-storey extensions for semi-detached houses
Our North West England guide starts at £53,000 for this type.
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Two-storey extensions for detached houses
Denton guide price from £82,000, Standard spec.
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Kitchen extensions with bedrooms above
Design, approvals and build for Denton homes. Guide from £53,000 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Denton: typical guide from £53,000 (plus en-suite).
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 Denton, with a rough idea of the approval route and cost for each.
Also available in Greater Manchester
- 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 Denton
Denton 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 Denton
Do you cover Denton?
Yes. We cover Denton (M34) and the surrounding area, including Hyde and Dukinfield. The first site visit is free.
What does a two-storey extension cost in Denton?
Using our North West 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 £53,000–£72,000 including VAT. An extension over a garage is about £30,000–£43,500.
Which other places near Denton do you cover?
Everywhere around it, including Hyde (1.6 miles), Dukinfield (1.8 miles) and Droylsden (2 miles), and the rest of Greater Manchester.