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: 16
name: THE BIRMINGHAM (618 CHURCH ROAD, YARDLEY) TPO 1965
tree-preservation-order: undefined
TPO 16
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.798928 52.479796,-1.799106 52.479612,-1.799014 52.479573,-1.798820 52.479510,-1.798228 52.479338,-1.798052 52.479303,-1.797946 52.479268,-1.797934 52.479285,-1.797656 52.479210,-1.797186 52.479151,-1.796989 52.479115,-1.796898 52.479111,-1.796415 52.479156,-1.796253 52.479194,-1.796079 52.479204,-1.796007 52.479199,-1.795928 52.479224,-1.795935 52.479434,-1.796063 52.479456,-1.796842 52.479552,-1.797200 52.479580,-1.798928 52.479796)))
point: POINT (-1.79746 52.47943)
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.
organisation
entry-date: 2025-11-30
start-date
end-date

Your dataset is missing the tree-preservation-order column.

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

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