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: 1435
name: THE BIRMINGHAM (FORMER WYCHBURY ROAD ALLOTMENT SITE, BARTLEY GREEN) TPO 2012
tree-preservation-order: undefined
TPO 1435
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-2.006450 52.429627,-2.006721 52.429829,-2.006979 52.430002,-2.007229 52.430215,-2.007877 52.430793,-2.007929 52.430816,-2.008021 52.430812,-2.008398 52.430644,-2.008577 52.430546,-2.008676 52.430366,-2.008776 52.430232,-2.008833 52.430080,-2.008938 52.429897,-2.009080 52.429722,-2.009194 52.429608,-2.009410 52.429421,-2.009468 52.429348,-2.009506 52.429220,-2.009510 52.429115,-2.009495 52.429069,-2.009478 52.429045,-2.009397 52.428987,-2.009189 52.428875,-2.008954 52.428776,-2.006450 52.429627)))
point: POINT (-2.008132 52.429735)
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.