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: 10
name: THE BIRMINGHAM ( WOODLANDS AND SITE OF ENDWOOD COURT CHURCH LANE, HANDSWORTH) TPO 1963
tree-preservation-order: undefined
TPO 10
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.922911 52.513418,-1.923326 52.513378,-1.923231 52.512816,-1.923195 52.512810,-1.922983 52.512834,-1.922759 52.512874,-1.922596 52.512920,-1.922088 52.513090,-1.922020 52.513133,-1.921994 52.513163,-1.921982 52.513193,-1.921982 52.513224,-1.922025 52.513301,-1.922377 52.513747,-1.922619 52.513693,-1.922643 52.513743,-1.923081 52.513668,-1.922911 52.513418)))
point: POINT (-1.922687 52.513272)
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.