Two-storey extensions in Lancaster
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Lancaster.
Lancaster at a glance
- Postcode districts
- LA1 and LA2
- Area
- Lancashire, England
- Price region
- North West England
- Nearest towns
- Morecambe (2.9 miles), Heysham (3.8 miles), Garstang (10.1 miles), Grange-over-Sands (10.8 miles)
- Distance to Preston
- about 20 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 districts LA1 and LA2 in and around Lancaster, along with neighbouring Morecambe, Heysham and Garstang.
Extensions available in Lancaster
Two-storey rear extensions
Design, approvals and build for Lancaster homes. Guide from £53,000.
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Two-storey side extensions
Guide from £82,000 in Lancaster, including VAT.
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Two-storey wraparound extensions
Guide from £114,500 in Lancaster, including VAT.
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Part single, part two-storey extensions
Our North West England guide starts at £68,500 for this type.
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Extensions over a garage
Design, approvals and build for Lancaster homes. Guide from £30,000.
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First-floor extensions
Our North West England guide starts at £24,000 for this type.
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Two-storey extensions for semi-detached houses
From £53,000 in Lancaster. Free visit to firm it up.
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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
From £53,000 (before kitchen units) in Lancaster. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Lancaster 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 Lancaster, 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 Lancaster
Lancaster 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 Lancaster
Do you cover Lancaster?
Yes. We cover Lancaster (LA1 and LA2) and the surrounding area, including Morecambe and Heysham. The first site visit is free.
What does a two-storey extension cost in Lancaster?
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 Lancaster do you cover?
Everywhere around it, including Morecambe (2.9 miles), Heysham (3.8 miles) and Garstang (10.1 miles), and the rest of Lancashire.