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: 88
name: THE BIRMINGHAM (OVERTON CLOSE REAR OF SOLIHULL LANE, HALL GREEN) TPO 1971
tree-preservation-order: undefined
TPO 88
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.834411 52.423148,-1.834306 52.423109,-1.833965 52.422754,-1.834584 52.422481,-1.834078 52.422174,-1.834279 52.422038,-1.834211 52.421998,-1.834196 52.421997,-1.833924 52.421813,-1.833649 52.421984,-1.833568 52.422018,-1.833499 52.422090,-1.833539 52.422113,-1.833318 52.422305,-1.833194 52.422440,-1.833163 52.422433,-1.833049 52.422514,-1.833001 52.422488,-1.832792 52.422551,-1.832568 52.422594,-1.832414 52.422577,-1.832194 52.422520,-1.832156 52.422530,-1.832083 52.422499,-1.831716 52.422418,-1.831649 52.422410,-1.831546 52.422647,-1.831358 52.422612,-1.831007 52.422516,-1.830796 52.422720,-1.830803 52.422741,-1.830778 52.422786,-1.830716 52.422797,-1.832276 52.423079,-1.832979 52.423195,-1.833018 52.423190,-1.833037 52.423160,-1.833082 52.423127,-1.833855 52.422821,-1.834061 52.423051,-1.834136 52.423111,-1.834209 52.423193,-1.834194 52.423246,-1.834411 52.423148)))
point: POINT (-1.832925 52.422651)
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.