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: 733
name: THE BIRMINGHAM (LAND REAR OF 18-52 MIDDLETON HALL ROAD AND LAND REAR OF 17-59 NORTHFIELD ROAD, COTTERIDGE) TPO 1996
tree-preservation-order: undefined
TPO 733
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.934284 52.416489,-1.934234 52.416288,-1.934215 52.416163,-1.933882 52.416188,-1.933874 52.416118,-1.933818 52.415861,-1.933606 52.415880,-1.933679 52.416202,-1.933453 52.416218,-1.933391 52.415904,-1.933178 52.415919,-1.933177 52.415910,-1.933074 52.415918,-1.933055 52.415831,-1.932948 52.415838,-1.932832 52.415300,-1.932633 52.415327,-1.932689 52.415662,-1.932696 52.415662,-1.932736 52.415846,-1.932616 52.415851,-1.932622 52.415888,-1.932308 52.415903,-1.932094 52.415922,-1.932251 52.416648,-1.932776 52.416608,-1.932709 52.416285,-1.933024 52.416254,-1.933278 52.416239,-1.933344 52.416564,-1.933650 52.416533,-1.934284 52.416489)))
point: POINT (-1.933045 52.41616)
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.