Two-storey extensions in Blackley
Need more room in Blackley? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Blackley at a glance
- Postcode districts
- M9
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Crumpsall (1.2 miles), Cheetham Hill (1.6 miles), Failsworth (2.2 miles), Middleton (2.3 miles)
- Distance to Manchester
- about 2.7 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 postcode district M9 in and around Blackley, along with neighbouring Crumpsall, Cheetham Hill and Failsworth.
Extensions available in Blackley
Two-storey rear extensions
Design, approvals and build for Blackley homes. Guide from £53,000.
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Two-storey side extensions
Our North West England guide starts at £82,000 for this type.
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Two-storey wraparound extensions
From £114,500 in Blackley. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £68,500 in Blackley, including VAT.
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Extensions over a garage
From £30,000 in Blackley. Free visit to firm it up.
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First-floor extensions
Design, approvals and build for Blackley homes. Guide from £24,000.
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Two-storey extensions for semi-detached houses
From £53,000 in Blackley. Free visit to firm it up.
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Two-storey extensions for detached houses
Our North West England guide starts at £82,000 for this type.
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Kitchen extensions with bedrooms above
Our North West England guide starts at £53,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Guide from £53,000 (plus en-suite) in Blackley, including VAT.
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 Blackley we also design annexes, home offices and bedrooms over garages.
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 Blackley
Blackley 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 Blackley
Do you cover Blackley?
Yes. We cover Blackley (M9) and the surrounding area, including Crumpsall and Cheetham Hill. The first site visit is free.
What does a two-storey extension cost in Blackley?
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 Blackley do you cover?
Everywhere around it, including Crumpsall (1.2 miles), Cheetham Hill (1.6 miles) and Failsworth (2.2 miles), and the rest of Greater Manchester.