Two-storey extensions in Ashton-in-Makerfield
We design, get approval for and build two-storey extensions in Ashton-in-Makerfield and the surrounding area. Choose the type of extension below or book a free site visit.
Ashton-in-Makerfield at a glance
- Postcode districts
- WN4
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Haydock (1.7 miles), Golborne (2.2 miles), Abram (2.9 miles), Newton-le-Willows (3.1 miles)
- Distance to Manchester
- about 17 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 Ashton-in-Makerfield (WN4) and the places around it, including Haydock (1.7 miles), Golborne (2.2 miles) and Abram.
Extensions available in Ashton-in-Makerfield

Two-storey rear extensions
Ashton-in-Makerfield guide price from £53,000, Standard spec.
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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
Our North West England guide starts at £114,500 for this type.
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Part single, part two-storey extensions
Ashton-in-Makerfield guide price from £68,500, Standard spec.
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Extensions over a garage
Our North West England guide starts at £30,000 for this type.
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First-floor extensions
Our North West England guide starts at £24,000 for this type.
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Two-storey extensions for semi-detached houses
From £53,000 in Ashton-in-Makerfield. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Ashton-in-Makerfield homes. Guide from £82,000.
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Kitchen extensions with bedrooms above
Design, approvals and build for Ashton-in-Makerfield homes. Guide from £53,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Our North West England guide starts at £53,000 (plus en-suite) for this type.
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 Ashton-in-Makerfield, 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 Ashton-in-Makerfield
Ashton-in-Makerfield 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 Ashton-in-Makerfield
Do you cover Ashton-in-Makerfield?
Yes. We cover Ashton-in-Makerfield (WN4) and the surrounding area, including Haydock and Golborne. The first site visit is free.
What does a two-storey extension cost in Ashton-in-Makerfield?
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 Ashton-in-Makerfield do you cover?
Everywhere around it, including Haydock (1.7 miles), Golborne (2.2 miles) and Abram (2.9 miles), and the rest of Greater Manchester.