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: 776
name: THE BIRMINGHAM (ASTON MANOR BOWLING GREEN, CHURCH ROAD, PERRY BARR) TPO 1998
tree-preservation-order: undefined
TPO 776
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.901753 52.527760,-1.902418 52.527558,-1.902430 52.527535,-1.902914 52.527216,-1.902320 52.526892,-1.901883 52.526670,-1.901381 52.526440,-1.901200 52.526349,-1.901012 52.526270,-1.900419 52.526535,-1.900242 52.526604,-1.899871 52.526786,-1.899861 52.526821,-1.900249 52.527112,-1.900646 52.527224,-1.901753 52.527760)))
point: POINT (-1.901388 52.527023)
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.