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: 773
name: THE BIRMINGHAM (LAND OFF MOXHULL DRIVE, WALMLEY)TPO 1998
tree-preservation-order: undefined
TPO 773
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.807377 52.541832,-1.807606 52.542007,-1.807632 52.541953,-1.807739 52.541638,-1.807911 52.541276,-1.807962 52.541115,-1.807851 52.540452,-1.807831 52.540050,-1.807849 52.539782,-1.807344 52.539766,-1.807005 52.539873,-1.806899 52.539890,-1.806477 52.539903,-1.806224 52.539898,-1.806077 52.539882,-1.805788 52.539825,-1.805531 52.539753,-1.805519 52.539765,-1.805084 52.539794,-1.805917 52.540514,-1.806178 52.540752,-1.806662 52.541263,-1.806816 52.541413,-1.807020 52.541555,-1.807063 52.541607,-1.807143 52.541668,-1.807377 52.541832)))
point: POINT (-1.806931 52.540612)
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.