Two-storey extensions in Atherton
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Atherton.
Atherton at a glance
- Postcode districts
- M46
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Tyldesley (1.3 miles), Westhoughton (2.2 miles), Leigh (2.2 miles), Little Hulton (3.2 miles)
- Distance to Manchester
- about 10.9 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 M46 in and around Atherton, along with neighbouring Tyldesley, Westhoughton and Leigh.
Extensions available in Atherton
Two-storey rear extensions
From £53,000 in Atherton. Free visit to firm it up.
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Two-storey side extensions
For homes in Atherton: typical guide from £82,000.
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Two-storey wraparound extensions
From £114,500 in Atherton. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £68,500 in Atherton, including VAT.
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Extensions over a garage
Design, approvals and build for Atherton homes. Guide from £30,000.
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First-floor extensions
Guide from £24,000 in Atherton, including VAT.
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Two-storey extensions for semi-detached houses
For homes in Atherton: typical guide from £53,000.
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Two-storey extensions for detached houses
For homes in Atherton: typical guide from £82,000.
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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 Atherton, including VAT.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Atherton we measure distances to every boundary before suggesting a type.
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 Atherton
Atherton 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 Atherton
Do you cover Atherton?
Yes. We cover Atherton (M46) and the surrounding area, including Tyldesley and Westhoughton. The first site visit is free.
What does a two-storey extension cost in Atherton?
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 Atherton do you cover?
Everywhere around it, including Tyldesley (1.3 miles), Westhoughton (2.2 miles) and Leigh (2.2 miles), and the rest of Greater Manchester.