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: 1424
name: THE BIRMINGHAM (6 - 20 HILLARIES ROAD, ERDINGTON) TPO 2012
tree-preservation-order: undefined
TPO 1424
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.852544 52.513822,-1.853364 52.514076,-1.853460 52.514051,-1.853681 52.513821,-1.853358 52.513720,-1.853482 52.513572,-1.852903 52.513393,-1.852544 52.513822)))
point: POINT (-1.853112 52.51375)
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.