Two-storey extensions in Preston
Need more room in Preston? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Preston at a glance
- Postcode districts
- PR1, PR2 and PR4
- Area
- Lancashire, England
- Price region
- North West England
- Nearest towns
- Leyland (4.5 miles), Clayton-le-Woods (4.8 miles), Chorley (8.6 miles), Blackburn (9.1 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 Preston (PR1, PR2 and PR4) and the places around it, including Leyland (4.5 miles), Clayton-le-Woods (4.8 miles) and Chorley.
Extensions available in Preston

Two-storey rear extensions
From £53,000 in Preston. Free visit to firm it up.
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Two-storey side extensions
Preston guide price from £82,000, Standard spec.
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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
Guide from £68,500 in Preston, including VAT.
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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
Preston guide price from £24,000, Standard spec.
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Two-storey extensions for semi-detached houses
Guide from £53,000 in Preston, including VAT.
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Two-storey extensions for detached houses
For homes in Preston: typical guide from £82,000.
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Kitchen extensions with bedrooms above
Guide from £53,000 (before kitchen units) in Preston, including VAT.
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Extra bedroom and en-suite extensions
Preston guide price from £53,000 (plus en-suite), Standard spec.
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 Preston, with a rough idea of the approval route and cost for each.
Also available in Lancashire
- 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 Preston
Preston 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 Preston
Do you cover Preston?
Yes. We cover Preston (PR1, PR2 and PR4) and the surrounding area, including Leyland and Clayton-le-Woods. The first site visit is free.
What does a two-storey extension cost in Preston?
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 Preston do you cover?
Everywhere around it, including Leyland (4.5 miles), Clayton-le-Woods (4.8 miles) and Chorley (8.6 miles), and the rest of Lancashire.