Yorkshire Dales barn conversion cost
Costs verified against BCIS Online (May 2026 release) and ONS Construction Output Price Index, April 2026. Class Q rules current to the 21 May 2025 GPDO amendment.
Yorkshire Dales field barn conversion lands at the BCIS national stone band (regional multiplier ~1.00). National Park policy and a heavy listed-building stock push most projects into full planning with listed-building consent.
National Park policy
The Yorkshire Dales National Park Authority retains a restrictive stance on isolated rural conversion outside settlement boundaries. Many Dales field barns are also Grade II listed, putting them outside Class Q in any case.
Worked example, 130 m² listed field barn
Shell works @ £2,650/m² (stone + listed premium)
£344,500
M&E (full off-grid)
£62,000
Professional fees, 14%
£48,000
Contingency, 10%
£45,450
Less VAT431C reclaim
-£24,100
All-in
£475,850
Class Q in the Dales
Class Q is unavailable in the National Park area for those parts designated as Article 2(3) land. Outside National Park boundaries (e.g. Nidderdale AONB fringes are also closed), Class Q is materially used.
Sources cited on this page