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: 1271
name: THE BIRMINGHAM (7 PARK HILL DRIVE, HANDSWORTH WOOD) TPO 2008
tree-preservation-order: undefined
TPO 1271
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.930934 52.523166,-1.930870 52.523300,-1.930884 52.523309,-1.930990 52.523352,-1.931503 52.523635,-1.932122 52.523951,-1.932161 52.523964,-1.932168 52.523955,-1.932330 52.523985,-1.932405 52.523974,-1.932533 52.523654,-1.932645 52.523671,-1.932662 52.523625,-1.932797 52.523645,-1.932918 52.523368,-1.932817 52.523334,-1.932751 52.523344,-1.932726 52.523314,-1.932691 52.523290,-1.932629 52.523273,-1.932590 52.523277,-1.932545 52.523302,-1.932405 52.523279,-1.932407 52.523254,-1.932394 52.523218,-1.932351 52.523182,-1.932191 52.523145,-1.932088 52.523131,-1.931555 52.523111,-1.931413 52.523121,-1.931169 52.523157,-1.931000 52.523155,-1.930934 52.523166)))
point: POINT (-1.931954 52.523466)
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.