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: 455
name: THE BIRMINGHAM (FORMER NEWEY GOODMAN FACTORY PREMISES, ROBIN HOOD LANE, HALL GREEN) TPO 1985
tree-preservation-order: undefined
TPO 455
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.841039 52.423245,-1.840697 52.423180,-1.840521 52.423378,-1.840118 52.423704,-1.840126 52.423717,-1.839930 52.423877,-1.839687 52.424053,-1.839624 52.424086,-1.840005 52.424513,-1.840478 52.424359,-1.841636 52.425663,-1.841778 52.425547,-1.841886 52.425474,-1.841974 52.425403,-1.842504 52.424944,-1.842527 52.424906,-1.842597 52.424840,-1.842647 52.424815,-1.842719 52.424757,-1.842887 52.424539,-1.842698 52.424464,-1.842639 52.424448,-1.843034 52.424132,-1.843332 52.423846,-1.843346 52.423810,-1.843382 52.423802,-1.843461 52.423742,-1.844317 52.422969,-1.844059 52.422865,-1.844012 52.422862,-1.843278 52.422620,-1.842642 52.422430,-1.842259 52.422810,-1.841092 52.422755,-1.841039 52.423245)))
point: POINT (-1.841931 52.423845)
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.