Two-storey extensions in Thirsk
Everything for a two-storey extension in Thirsk, in one place: types, guide prices for Yorkshire and the Humber, the approval rules in England and how to get started.
Thirsk at a glance
- Postcode districts
- YO7
- Area
- North Yorkshire, England
- Price region
- Yorkshire and the Humber
- Nearest towns
- Northallerton (8.1 miles), Ripon (10 miles), Knaresborough (16.3 miles), Ingleby Greenhow (17.8 miles)
- Distance to York
- about 21.8 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 Thirsk we also work in Northallerton, Ripon and Knaresborough, and across the rest of North Yorkshire. Postcode district in and near Thirsk: YO7.
Extensions available in Thirsk
Two-storey rear extensions
Design, approvals and build for Thirsk homes. Guide from £51,500.
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Two-storey side extensions
Design, approvals and build for Thirsk homes. Guide from £79,000.
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Two-storey wraparound extensions
Design, approvals and build for Thirsk homes. Guide from £111,000.
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Part single, part two-storey extensions
Guide from £66,000 in Thirsk, including VAT.
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Extensions over a garage
For homes in Thirsk: typical guide from £29,000.
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First-floor extensions
Design, approvals and build for Thirsk homes. Guide from £23,000.
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Two-storey extensions for semi-detached houses
Thirsk guide price from £51,500, Standard spec.
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Two-storey extensions for detached houses
Design, approvals and build for Thirsk homes. Guide from £79,000.
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Kitchen extensions with bedrooms above
Thirsk guide price from £51,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
From £51,500 (plus en-suite) in Thirsk. Free visit to firm it up.
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 Thirsk, with a rough idea of the approval route and cost for each.
Also available in North 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 Thirsk
Thirsk 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 Thirsk
Do you cover Thirsk?
Yes. We cover Thirsk (YO7) and the surrounding area, including Northallerton and Ripon. The first site visit is free.
What does a two-storey extension cost in Thirsk?
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 Thirsk do you cover?
Everywhere around it, including Northallerton (8.1 miles), Ripon (10 miles) and Knaresborough (16.3 miles), and the rest of North Yorkshire.