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: 1392
name: THE BIRMINGHAM (1 - 19 SOHO ROAD & 1 PIERS ROAD, LOZELLS) TPO 2011
tree-preservation-order: undefined
TPO 1392
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.925190 52.500828,-1.924521 52.500716,-1.924154 52.500634,-1.924002 52.500672,-1.923780 52.500756,-1.923643 52.500837,-1.923629 52.500872,-1.923640 52.500901,-1.923663 52.500922,-1.923888 52.500992,-1.924383 52.501134,-1.924666 52.501193,-1.925020 52.501280,-1.925078 52.501261,-1.925164 52.501205,-1.925188 52.501157,-1.925202 52.501075,-1.925205 52.500978,-1.925190 52.500828)))
point: POINT (-1.924507 52.500938)
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.