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: 617
name: THE BIRMINGHAM (LAND REAR OF HILL VILLAGE ROAD, SUTTON COLDFIELD) TPO 1993
tree-preservation-order: undefined
TPO 617
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.836318 52.599097,-1.836358 52.599219,-1.837512 52.599065,-1.837423 52.598894,-1.837339 52.598844,-1.837318 52.598784,-1.837144 52.598637,-1.836321 52.598081,-1.836274 52.598079,-1.836291 52.598191,-1.836287 52.598293,-1.836276 52.598383,-1.836222 52.598564,-1.836278 52.598605,-1.836239 52.598717,-1.836177 52.598728,-1.836140 52.598900,-1.836256 52.598906,-1.836318 52.599097)))
point: POINT (-1.836715 52.598761)
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.