Two-storey extensions in Windermere
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Windermere.
Windermere at a glance
- Postcode districts
- LA21, LA22 and LA23
- Area
- Cumbria, England
- Price region
- North West England
- Nearest towns
- Kendal (7.4 miles), Grange-over-Sands (13.5 miles), Ulverston (14.9 miles), Keswick (17.6 miles)
- Distance to Carlisle
- about 35.5 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 LA21, LA22 and LA23 in and around Windermere, along with neighbouring Kendal, Grange-over-Sands and Ulverston.
Extensions available in Windermere
Two-storey rear extensions
From £53,000 in Windermere. Free visit to firm it up.
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Two-storey side extensions
For homes in Windermere: typical guide from £82,000.
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Two-storey wraparound extensions
Guide from £114,500 in Windermere, 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
Our North West England guide starts at £30,000 for this type.
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First-floor extensions
Design, approvals and build for Windermere homes. Guide from £24,000.
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Two-storey extensions for semi-detached houses
For homes in Windermere: typical guide from £53,000.
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Two-storey extensions for detached houses
Guide from £82,000 in Windermere, including VAT.
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Kitchen extensions with bedrooms above
Guide from £53,000 (before kitchen units) in Windermere, including VAT.
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Extra bedroom and en-suite extensions
Design, approvals and build for Windermere homes. Guide from £53,000 (plus en-suite).
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Windermere we measure distances to every boundary before suggesting a type.
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 Windermere
Windermere 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 Windermere
Do you cover Windermere?
Yes. We cover Windermere (LA21, LA22 and LA23) and the surrounding area, including Kendal and Grange-over-Sands. The first site visit is free.
What does a two-storey extension cost in Windermere?
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 Windermere do you cover?
Everywhere around it, including Kendal (7.4 miles), Grange-over-Sands (13.5 miles) and Ulverston (14.9 miles), and the rest of Cumbria.