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: 664
name: THE BIRMINGHAM (ST ANDREWS CHURCH AND LAND AT REAR OXHILL ROAD, HANDSWORTH) TPO 1994
tree-preservation-order: undefined
TPO 664
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.936611 52.514789,-1.936629 52.514788,-1.936715 52.514643,-1.936790 52.514658,-1.936929 52.514414,-1.936795 52.514399,-1.936826 52.514305,-1.936421 52.514244,-1.936530 52.513908,-1.936099 52.513843,-1.935920 52.514338,-1.935790 52.514353,-1.935802 52.514419,-1.936460 52.514404,-1.936457 52.514493,-1.936510 52.514487,-1.936527 52.514494,-1.936569 52.514601,-1.936611 52.514789)))
point: POINT (-1.936368 52.514266)
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.