Two-storey extensions in Garstang
Homeowners in Garstang can use us for the whole project or just the drawings and approvals. Start with a free visit.
Garstang at a glance
- Postcode districts
- PR3
- Area
- Lancashire, England
- Price region
- North West England
- Nearest towns
- Poulton-le-Fylde (9.7 miles), Fleetwood (9.8 miles), Preston (9.9 miles), Lancaster (10.1 miles)
- Distance to Preston
- about 9.9 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.
Garstang sits about 9.9 miles from Preston. Closer to home, Poulton-le-Fylde is 9.7 miles away and Fleetwood 9.8 miles.
Extensions available in Garstang

Two-storey rear extensions
Design, approvals and build for Garstang homes. Guide from £53,000.
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Two-storey side extensions
Design, approvals and build for Garstang homes. Guide from £82,000.
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Two-storey wraparound extensions
For homes in Garstang: typical guide from £114,500.
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Part single, part two-storey extensions
From £68,500 in Garstang. Free visit to firm it up.
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Extensions over a garage
Guide from £30,000 in Garstang, including VAT.
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First-floor extensions
From £24,000 in Garstang. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Garstang homes. Guide from £53,000.
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Two-storey extensions for detached houses
For homes in Garstang: typical guide from £82,000.
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Kitchen extensions with bedrooms above
Design, approvals and build for Garstang homes. Guide from £53,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Garstang guide price from £53,000 (plus en-suite), Standard spec.
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 Garstang we also design annexes, home offices and bedrooms over garages.
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 Garstang
Garstang 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 Garstang
Do you cover Garstang?
Yes. We cover Garstang (PR3) and the surrounding area, including Poulton-le-Fylde and Fleetwood. The first site visit is free.
What does a two-storey extension cost in Garstang?
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 Garstang do you cover?
Everywhere around it, including Poulton-le-Fylde (9.7 miles), Fleetwood (9.8 miles) and Preston (9.9 miles), and the rest of Lancashire.