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: 482
name: THE BIRMINGHAM (LAND AT MONYHULL HOSPITAL, MONYHULL HALL ROAD, KINGS NORTON) TPO 1986
tree-preservation-order: undefined
TPO 482
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.909350 52.409742,-1.909059 52.409319,-1.907770 52.409571,-1.907800 52.409621,-1.907822 52.409894,-1.907756 52.409901,-1.907793 52.410356,-1.908030 52.410585,-1.908059 52.410572,-1.908140 52.410652,-1.908392 52.410486,-1.908583 52.410406,-1.908906 52.410320,-1.908625 52.409975,-1.909350 52.409742)))
point: POINT (-1.908417 52.409918)
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.