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: 215
name: THE BIRMINGHAM (SITE OF 139-143 ALDRIDGE ROAD, PERRY BARR) TPO 1976
tree-preservation-order: undefined
TPO 215
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.897363 52.523488,-1.897489 52.523477,-1.897575 52.523457,-1.897674 52.523420,-1.897798 52.523359,-1.897849 52.523300,-1.897910 52.523155,-1.897887 52.523113,-1.898063 52.523083,-1.898043 52.522929,-1.897052 52.523093,-1.897073 52.523357,-1.897088 52.523438,-1.897099 52.523448,-1.897228 52.523496,-1.897363 52.523488)))
point: POINT (-1.897509 52.523218)
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.