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: 492
name: THE BIRMINGHAM (REAR OF 2-14 SIMPSON ROAD AND 1-19 WOODLEIGH ROAD, WYLDE GREEN) TPO 1987
tree-preservation-order: undefined
TPO 492
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.824523 52.545093,-1.824588 52.544636,-1.824581 52.544616,-1.824523 52.544572,-1.823840 52.544523,-1.823574 52.544519,-1.822626 52.544633,-1.822549 52.544695,-1.822680 52.544957,-1.822823 52.545188,-1.822922 52.545206,-1.823154 52.545167,-1.823421 52.545163,-1.823894 52.545121,-1.824052 52.545119,-1.824277 52.545137,-1.824421 52.545139,-1.824523 52.545093)))
point: POINT (-1.823603 52.544847)
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.