Only slipped another month, but 12 February 2024 is now the date when BNG will be mandatory for new planning applications for major development made under the Town and Country Planning Act (TCPA) 1990. Major development includes residential developments with 10 or more dwellings, or where the site area is greater than 0.5 hectares. BNG for small sites will have the transition period extended to 2 April 2024.

What influence willl (and should) scarcity of a category within the supply side have on BNG values, and what degree of influence will competition have on values? Low values could cause a fall-back on agri-environment schemes and scarcity could render geographical weighting irrelevant. What price a regulated value.

The Govt Statutory biodiversity prices are subdivided within broad habitat types, also being scaled by distinctiveness. They are priced so as not to compete with the private market, but should the private sector pricing reflect this scale?

Concerning the value of a Biodiversity Unit. Should the value be a constant, with the number of units ascertained by the Metric (according to category, condition and situation) in effect varying the concentration of value.

Following discussions with local authorities, I shall be re-referencing the BNG locations using ODGB36 Grid References rather than National Grid Field Numbers - which are essentially the same numbers, but in a different order. Actually makes sense, because it’s the centre of the site whereas the field numbers include areas not enhanced.