Two-storey extensions in Leigh
Everything for a two-storey extension in Leigh, in one place: types, guide prices for North West England, the approval rules in England and how to get started.
Leigh at a glance
- Postcode districts
- WN7
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Atherton (2.2 miles), Tyldesley (2.5 miles), Abram (3.1 miles), Golborne (3.4 miles)
- Distance to Manchester
- about 11.7 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 WN7 in and around Leigh, along with neighbouring Atherton, Tyldesley and Abram.
Extensions available in Leigh
Two-storey rear extensions
Leigh 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
From £114,500 in Leigh. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £68,500 in Leigh, including VAT.
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Extensions over a garage
Leigh guide price from £30,000, Standard spec.
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First-floor extensions
Leigh guide price from £24,000, Standard spec.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Leigh homes. Guide from £53,000.
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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
Our North West England guide starts at £53,000 (plus en-suite) for this type.
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 Leigh 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 Leigh
Leigh 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 Leigh
Do you cover Leigh?
Yes. We cover Leigh (WN7) and the surrounding area, including Atherton and Tyldesley. The first site visit is free.
What does a two-storey extension cost in Leigh?
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 Leigh do you cover?
Everywhere around it, including Atherton (2.2 miles), Tyldesley (2.5 miles) and Abram (3.1 miles), and the rest of Greater Manchester.