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: 886
name: THE BIRMINGHAM (WESTLAND CLOSE AND SOUTH GROVE, ERDINGTON) TPO 1999
tree-preservation-order: undefined
TPO 886
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.842609 52.529712,-1.842583 52.529858,-1.842736 52.529856,-1.842737 52.529865,-1.842977 52.529860,-1.843609 52.529825,-1.843923 52.529818,-1.844054 52.529805,-1.844052 52.529790,-1.844084 52.529740,-1.844042 52.529720,-1.844070 52.529467,-1.844037 52.529290,-1.844039 52.529168,-1.844085 52.528957,-1.844160 52.528899,-1.843881 52.528800,-1.843837 52.528803,-1.843791 52.528795,-1.843771 52.528825,-1.843241 52.528831,-1.842907 52.528848,-1.842316 52.528859,-1.842315 52.528844,-1.841580 52.528870,-1.841639 52.529139,-1.841610 52.529214,-1.841600 52.529365,-1.841648 52.529375,-1.842547 52.529377,-1.842599 52.529386,-1.842660 52.529424,-1.842609 52.529712)))
point: POINT (-1.843014 52.529277)
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.