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: 752
name: THE BIRMINGHAM (FORMER JAFFRAY SCHOOL FENTHAM ROAD, ERDINGTON) TPO 1997
tree-preservation-order: undefined
TPO 752
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.851721 52.519467,-1.851729 52.519466,-1.851659 52.519203,-1.851645 52.519089,-1.851628 52.518770,-1.851575 52.518434,-1.851564 52.518416,-1.851510 52.518378,-1.851475 52.518370,-1.850546 52.518358,-1.849442 52.519560,-1.849663 52.519579,-1.849931 52.519576,-1.850207 52.519559,-1.850230 52.519531,-1.850284 52.519520,-1.850308 52.519552,-1.850761 52.519523,-1.850780 52.519486,-1.850836 52.519484,-1.850869 52.519519,-1.851721 52.519467)))
point: POINT (-1.850766 52.519021)
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.