Tree preservation zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: 30
name: THE BIRMINGHAM (PETERSFIELD ROAD, HALL GREEN) TPO 1966
tree-preservation-order: undefined
TPO 30
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.850818 52.429810,-1.850739 52.429803,-1.850200 52.429465,-1.850405 52.429309,-1.850496 52.429233,-1.850666 52.429099,-1.850917 52.428907,-1.850663 52.428692,-1.850457 52.428770,-1.850373 52.428822,-1.850198 52.428926,-1.850021 52.429029,-1.849924 52.428945,-1.849794 52.429010,-1.849699 52.429068,-1.849618 52.429131,-1.849528 52.429185,-1.849409 52.429228,-1.849334 52.429276,-1.849174 52.429384,-1.849158 52.429392,-1.849186 52.429405,-1.849371 52.429539,-1.849616 52.429709,-1.849625 52.429713,-1.849825 52.429603,-1.849815 52.429599,-1.849853 52.429575,-1.849924 52.429546,-1.850027 52.429485,-1.850593 52.429848,-1.850673 52.429897,-1.850818 52.429810)))
point: POINT (-1.850077 52.429256)
notes: The shaded area represents those properties which fall within the outline of a Tree Preservation Order. To precisely identify trees protected by the Order, you can request a copy of the tree preservation order at the following link.
entry-date: 2026-06-25
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end-date

Your data is missing a tree-preservation-order.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.