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: 299
name: THE BIRMINGHAM (SHELDON HALL GRESSEL LANE, TILE CROSS) TPO 1979
tree-preservation-order: undefined
TPO 299
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.762238 52.485222,-1.762441 52.485251,-1.762774 52.484697,-1.763711 52.484814,-1.763848 52.484729,-1.763943 52.484657,-1.763617 52.484568,-1.763393 52.484489,-1.763205 52.484397,-1.762625 52.484141,-1.762184 52.483895,-1.762004 52.483909,-1.761853 52.483733,-1.761839 52.483739,-1.761777 52.484142,-1.760961 52.484825,-1.761123 52.485118,-1.761572 52.485233,-1.761568 52.485185,-1.761586 52.485132,-1.761632 52.485039,-1.761658 52.485041,-1.762149 52.485201,-1.762238 52.485222)))
point: POINT (-1.762204 52.48461)
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.