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: 185
name: THE BIRMINGHAM (PART OF SPRINGFIELD ALLOTMENTS, SPRINGFIELD ROAD, MOSELEY) TPO 1975
tree-preservation-order: undefined
TPO 185
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.860979 52.438522,-1.860973 52.438553,-1.860981 52.438566,-1.861038 52.438586,-1.861070 52.438581,-1.861833 52.438114,-1.861858 52.438111,-1.861877 52.438114,-1.862994 52.438773,-1.863026 52.438784,-1.863077 52.438780,-1.863172 52.438725,-1.861890 52.437955,-1.860979 52.438522)))
point: POINT (-1.862121 52.438355)
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.