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: 85
name: THE BIRMINGHAM (SELLY WICK ROAD, SELLY PARK) TPO 1967
tree-preservation-order: undefined
TPO 85
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.920457 52.443501,-1.920362 52.443415,-1.920188 52.443301,-1.920194 52.443295,-1.920092 52.443178,-1.919993 52.442947,-1.919989 52.442843,-1.920006 52.442834,-1.919985 52.442821,-1.920242 52.442631,-1.920038 52.442516,-1.919521 52.442190,-1.919366 52.442216,-1.919244 52.442220,-1.919038 52.442164,-1.918958 52.442199,-1.918865 52.442224,-1.917999 52.442547,-1.918170 52.442729,-1.918294 52.442896,-1.918592 52.443354,-1.918707 52.443422,-1.918879 52.443482,-1.918961 52.443498,-1.919018 52.443520,-1.919410 52.443781,-1.919421 52.443848,-1.919712 52.443732,-1.920457 52.443501)))
point: POINT (-1.919262 52.442943)
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.