Two-storey extensions in Ilkley
Planning a bigger home in Ilkley? Compare extension types and guide prices below, then book a free site visit.
Ilkley at a glance
- Postcode districts
- LS29
- Area
- West Yorkshire, England
- Price region
- Yorkshire and the Humber
- Nearest towns
- Keighley (5.2 miles), Bingley (5.3 miles), Otley (5.4 miles), Baildon (5.5 miles)
- Distance to Leeds
- about 14.3 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.
Around Ilkley we also work in Keighley, Bingley and Otley, and across the rest of West Yorkshire. Postcode district in and near Ilkley: LS29.
Extensions available in Ilkley
Two-storey rear extensions
From £51,500 in Ilkley. Free visit to firm it up.
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Two-storey side extensions
From £79,000 in Ilkley. Free visit to firm it up.
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Two-storey wraparound extensions
For homes in Ilkley: typical guide from £111,000.
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Part single, part two-storey extensions
From £66,000 in Ilkley. Free visit to firm it up.
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Extensions over a garage
From £29,000 in Ilkley. Free visit to firm it up.
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First-floor extensions
Ilkley guide price from £23,000, Standard spec.
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Two-storey extensions for semi-detached houses
For homes in Ilkley: typical guide from £51,500.
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Two-storey extensions for detached houses
Design, approvals and build for Ilkley homes. Guide from £79,000.
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Kitchen extensions with bedrooms above
From £51,500 (before kitchen units) in Ilkley. Free visit to firm it up.
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Extra bedroom and en-suite extensions
For homes in Ilkley: typical guide from £51,500 (plus en-suite).
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in West Yorkshire, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
Also available in West Yorkshire
- 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 Ilkley
Ilkley 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 Ilkley
Do you cover Ilkley?
Yes. We cover Ilkley (LS29) and the surrounding area, including Keighley and Bingley. The first site visit is free.
What does a two-storey extension cost in Ilkley?
Using our Yorkshire and the Humber 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 £51,500–£69,500 including VAT. An extension over a garage is about £29,000–£42,000.
Which other places near Ilkley do you cover?
Everywhere around it, including Keighley (5.2 miles), Bingley (5.3 miles) and Otley (5.4 miles), and the rest of West Yorkshire.