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: 853
name: THE BIRMINGHAM (LAND CORNER OF HARTOPP ROAD AND LADYWOOD ROAD, SUTTON COLDFIELD) TPO 1999
tree-preservation-order: undefined
TPO 853
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.837609 52.574756,-1.836343 52.573937,-1.836296 52.573928,-1.836264 52.573944,-1.836267 52.574002,-1.836257 52.574017,-1.836271 52.574034,-1.836286 52.574150,-1.836395 52.575182,-1.836428 52.575182,-1.837003 52.575079,-1.837609 52.574756)))
point: POINT (-1.836773 52.574639)
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.