Two-storey extensions in Barrow-in-Furness
Planning a bigger home in Barrow-in-Furness? Compare extension types and guide prices below, then book a free site visit.
Barrow-in-Furness at a glance
- Postcode districts
- LA13 and LA14
- Area
- Cumbria, England
- Price region
- North West England
- Nearest towns
- Dalton-in-Furness (3.8 miles), Askam-in-Furness (5.3 miles), Millom (7.1 miles), Ulverston (7.9 miles)
- Distance to Carlisle
- about 55.4 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 Barrow-in-Furness (LA13 and LA14) and the places around it, including Dalton-in-Furness (3.8 miles), Askam-in-Furness (5.3 miles) and Millom.
Extensions available in Barrow-in-Furness

Two-storey rear extensions
Guide from £53,000 in Barrow-in-Furness, including VAT.
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Two-storey side extensions
Guide from £82,000 in Barrow-in-Furness, including VAT.
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Two-storey wraparound extensions
From £114,500 in Barrow-in-Furness. Free visit to firm it up.
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Part single, part two-storey extensions
From £68,500 in Barrow-in-Furness. Free visit to firm it up.
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Extensions over a garage
For homes in Barrow-in-Furness: typical guide from £30,000.
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First-floor extensions
For homes in Barrow-in-Furness: typical guide from £24,000.
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Two-storey extensions for semi-detached houses
From £53,000 in Barrow-in-Furness. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Barrow-in-Furness homes. Guide from £82,000.
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Kitchen extensions with bedrooms above
Guide from £53,000 (before kitchen units) in Barrow-in-Furness, including VAT.
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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 Barrow-in-Furness we also design annexes, home offices and bedrooms over garages.
Also available in Cumbria
- 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 Barrow-in-Furness
Barrow-in-Furness 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 Barrow-in-Furness
Do you cover Barrow-in-Furness?
Yes. We cover Barrow-in-Furness (LA13 and LA14) and the surrounding area, including Dalton-in-Furness and Askam-in-Furness. The first site visit is free.
What does a two-storey extension cost in Barrow-in-Furness?
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 Barrow-in-Furness do you cover?
Everywhere around it, including Dalton-in-Furness (3.8 miles), Askam-in-Furness (5.3 miles) and Millom (7.1 miles), and the rest of Cumbria.