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: 523
name: THE BIRMINGHAM (59 AND 61 SELLY WICK ROAD, SELLY PARK) TPO 1987
tree-preservation-order: undefined
TPO 523
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.921284 52.443283,-1.921515 52.443231,-1.921018 52.442764,-1.920724 52.442473,-1.920747 52.442337,-1.920816 52.442276,-1.921046 52.442151,-1.920480 52.441707,-1.920441 52.441715,-1.920127 52.441850,-1.919920 52.441991,-1.919910 52.441986,-1.919758 52.442090,-1.919521 52.442190,-1.920046 52.442518,-1.919883 52.442614,-1.919930 52.442646,-1.919822 52.442727,-1.920006 52.442834,-1.919989 52.442843,-1.919993 52.442947,-1.920092 52.443178,-1.920194 52.443295,-1.920188 52.443301,-1.920362 52.443415,-1.920457 52.443501,-1.920807 52.443399,-1.921284 52.443283)))
point: POINT (-1.920484 52.442639)
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.