Two-storey extensions in Warrington
We design, get approval for and build two-storey extensions in Warrington and the surrounding area. Choose the type of extension below or book a free site visit.
Warrington at a glance
- Postcode districts
- WA1, WA2 and WA4
- Area
- Cheshire, England
- Price region
- North West England
- Nearest towns
- Great Sankey (2.5 miles), Newton-le-Willows (4.1 miles), Lymm (4.3 miles), Golborne (5.9 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.
Around Warrington we also work in Great Sankey, Newton-le-Willows and Lymm, and across the rest of Cheshire. Postcode districts in and near Warrington: WA1, WA2 and WA4.
Extensions available in Warrington

Two-storey rear extensions
Warrington 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
For homes in Warrington: typical guide from £114,500.
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Part single, part two-storey extensions
Design, approvals and build for Warrington homes. Guide from £68,500.
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Extensions over a garage
From £30,000 in Warrington. Free visit to firm it up.
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First-floor extensions
Design, approvals and build for Warrington homes. Guide from £24,000.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Warrington homes. Guide from £53,000.
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Two-storey extensions for detached houses
Warrington guide price from £82,000, Standard spec.
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Kitchen extensions with bedrooms above
From £53,000 (before kitchen units) in Warrington. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Design, approvals and build for Warrington homes. Guide from £53,000 (plus en-suite).
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in Cheshire
- 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 Warrington
Warrington 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 Warrington
Do you cover Warrington?
Yes. We cover Warrington (WA1, WA2 and WA4) and the surrounding area, including Great Sankey and Newton-le-Willows. The first site visit is free.
What does a two-storey extension cost in Warrington?
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 Warrington do you cover?
Everywhere around it, including Great Sankey (2.5 miles), Newton-le-Willows (4.1 miles) and Lymm (4.3 miles), and the rest of Cheshire.