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: 427
name: THE BIRMINGHAM (LAND AT CALIFORNIA WAY/ STONEHOUSE HILL, HARBORNE) TPO 1984
tree-preservation-order: undefined
TPO 427
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.972725 52.445599,-1.972810 52.445549,-1.972777 52.445484,-1.972526 52.445452,-1.972565 52.445350,-1.971506 52.445208,-1.971609 52.444975,-1.971559 52.444968,-1.971489 52.445091,-1.971324 52.445439,-1.971116 52.445900,-1.971058 52.446047,-1.971083 52.446051,-1.971079 52.446070,-1.971087 52.446109,-1.971133 52.446202,-1.971332 52.446251,-1.972141 52.446088,-1.972913 52.445920,-1.972848 52.445820,-1.972725 52.445599)))
point: POINT (-1.971906 52.445723)
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.