Two-storey extensions in Newton-le-Willows
Need more room in Newton-le-Willows? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Newton-le-Willows at a glance
- Postcode districts
- WA12
- Area
- Merseyside, England
- Price region
- North West England
- Nearest towns
- Golborne (1.9 miles), Ashton-in-Makerfield (3.1 miles), Haydock (3.6 miles), Warrington (4.1 miles)
- Distance to Liverpool
- about 15.8 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 Newton-le-Willows (WA12) and the places around it, including Golborne (1.9 miles), Ashton-in-Makerfield (3.1 miles) and Haydock.
Extensions available in Newton-le-Willows

Two-storey rear extensions
For homes in Newton-le-Willows: typical guide from £53,000.
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Two-storey side extensions
Design, approvals and build for Newton-le-Willows homes. Guide from £82,000.
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Two-storey wraparound extensions
Design, approvals and build for Newton-le-Willows homes. Guide from £114,500.
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Part single, part two-storey extensions
From £68,500 in Newton-le-Willows. Free visit to firm it up.
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Extensions over a garage
From £30,000 in Newton-le-Willows. Free visit to firm it up.
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First-floor extensions
Newton-le-Willows guide price from £24,000, Standard spec.
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Two-storey extensions for semi-detached houses
Newton-le-Willows guide price from £53,000, Standard spec.
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Two-storey extensions for detached houses
From £82,000 in Newton-le-Willows. Free visit to firm it up.
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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 Newton-le-Willows, including VAT.
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Merseyside, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
Also available in Merseyside
- 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 Newton-le-Willows
Newton-le-Willows 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 Newton-le-Willows
Do you cover Newton-le-Willows?
Yes. We cover Newton-le-Willows (WA12) and the surrounding area, including Golborne and Ashton-in-Makerfield. The first site visit is free.
What does a two-storey extension cost in Newton-le-Willows?
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 Newton-le-Willows do you cover?
Everywhere around it, including Golborne (1.9 miles), Ashton-in-Makerfield (3.1 miles) and Haydock (3.6 miles), and the rest of Merseyside.