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: 34
name: THE BIRMINGHAM (GOODISON GARDENS, ERDINGTON) TPO 1968
tree-preservation-order: undefined
TPO 34
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.827315 52.529931,-1.826610 52.529540,-1.826038 52.529248,-1.825950 52.529186,-1.825628 52.528907,-1.824383 52.529487,-1.824075 52.529619,-1.824435 52.529971,-1.825061 52.530423,-1.825762 52.530985,-1.827315 52.529931)))
point: POINT (-1.825677 52.529904)
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.