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: 1219
name: THE BIRMINGHAM (FORMER HIGHCROFT HOSPITAL, ERDINGTON) TPO 2007
tree-preservation-order: undefined
TPO 1219
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.854262 52.519682,-1.854246 52.519414,-1.852776 52.519503,-1.852791 52.519700,-1.852868 52.520038,-1.852856 52.520138,-1.852911 52.520415,-1.852943 52.520440,-1.853005 52.520441,-1.855055 52.520274,-1.855146 52.520671,-1.856489 52.520569,-1.856235 52.519497,-1.856275 52.519444,-1.856300 52.519426,-1.856528 52.519368,-1.856491 52.519277,-1.855871 52.519430,-1.855861 52.519414,-1.855748 52.519440,-1.855757 52.519456,-1.855253 52.519578,-1.855243 52.519561,-1.855129 52.519588,-1.855140 52.519604,-1.855127 52.519607,-1.854262 52.519682)))
point: POINT (-1.854705 52.519986)
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.