Two-storey extensions in Knaresborough
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Knaresborough.
Knaresborough at a glance
- Postcode districts
- HG5 and YO51
- Area
- North Yorkshire, England
- Price region
- Yorkshire and the Humber
- Nearest towns
- Harrogate (3.1 miles), Wetherby (6.5 miles), Ripon (9.1 miles), Otley (11.6 miles)
- Distance to York
- about 16.1 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.
Knaresborough sits about 16.1 miles from York. Closer to home, Harrogate is 3.1 miles away and Wetherby 6.5 miles.
Extensions available in Knaresborough

Two-storey rear extensions
Guide from £51,500 in Knaresborough, including VAT.
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Two-storey side extensions
From £79,000 in Knaresborough. Free visit to firm it up.
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Two-storey wraparound extensions
Our Yorkshire and the Humber guide starts at £111,000 for this type.
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Part single, part two-storey extensions
From £66,000 in Knaresborough. Free visit to firm it up.
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Extensions over a garage
For homes in Knaresborough: typical guide from £29,000.
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First-floor extensions
Knaresborough guide price from £23,000, Standard spec.
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Two-storey extensions for semi-detached houses
Guide from £51,500 in Knaresborough, including VAT.
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Two-storey extensions for detached houses
For homes in Knaresborough: typical guide from £79,000.
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Kitchen extensions with bedrooms above
Knaresborough guide price from £51,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Guide from £51,500 (plus en-suite) in Knaresborough, including VAT.
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 Knaresborough we measure distances to every boundary before suggesting a type.
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 Knaresborough
Knaresborough 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 Knaresborough
Do you cover Knaresborough?
Yes. We cover Knaresborough (HG5 and YO51) and the surrounding area, including Harrogate and Wetherby. The first site visit is free.
What does a two-storey extension cost in Knaresborough?
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 Knaresborough do you cover?
Everywhere around it, including Harrogate (3.1 miles), Wetherby (6.5 miles) and Ripon (9.1 miles), and the rest of North Yorkshire.