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: 93
name: THE BIRMINGHAM (No. 10 HAMSTEAD HILL, HANDSWORTH) TPO 1968
tree-preservation-order: undefined
TPO 93
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.932049 52.521086,-1.932517 52.521121,-1.932729 52.521004,-1.932699 52.520969,-1.933096 52.520796,-1.932163 52.520176,-1.932032 52.520101,-1.931947 52.520055,-1.931879 52.520029,-1.931795 52.520016,-1.931733 52.520024,-1.931666 52.520057,-1.931641 52.520099,-1.931640 52.520128,-1.931695 52.520261,-1.931743 52.520436,-1.931772 52.520708,-1.931771 52.520896,-1.931805 52.520917,-1.931802 52.520961,-1.931793 52.520972,-1.931767 52.520981,-1.931753 52.521062,-1.932049 52.521086)))
point: POINT (-1.932229 52.520641)
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.