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Statutory Biodiversity Metric v4.0 (JP039)· GOV.UK statutory credit prices checked 15 November 2026 (page updated 3 November 2026, prices unchanged)· NSIP extension live 2 November 2026· Reviewed 6 August 2026

South West biodiversity units: habitat bank availability and pricing

Off-site BNG unit supply in South West; covers Devon, Cornwall, Somerset, Dorset, Wiltshire, Gloucestershire. Strong supply in lowland calcareous grassland and lowland mixed woodland; Cornwall’s >10% policy keeps in-LPA demand high.

Awaiting MCIEEM peer review · CIEEM (Chartered Institute of Ecology and Environmental Management)

Counties covered

Devon, Cornwall, Somerset, Dorset, Wiltshire, Gloucestershire.

Operators with active supply

Environment Bank
SW
£ / unit
Not published
Distinctiveness
Low to V.High
Availability
Active inventory
Nattergal
SW
£ / unit
Not published
Distinctiveness
High to V.High
Availability
Forward orders
Biodiversity Units UK
SW broker
£ / unit
Not published
Distinctiveness
Low to High
Availability
On-request

Regional supply commentary

Strong supply in lowland calcareous grassland and lowland mixed woodland; Cornwall’s >10% policy keeps in-LPA demand high. None of these operators publishes a per-unit price; units are sold by quote. Check registered supply on the Defra biodiversity gain sites register, then ask operators to quote.[S5]

Trading-rule and spatial-risk note

Off-site units sourced inside the LPA carry the 1.0 spatial multiplier; neighbouring NCA discounts to 0.75; outside NCA discounts to 0.5. Combine with the like-for-like trading rule when triangulating compliant supply.