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: 4
name: THE BIRMINGHAM (BRANDWOOD ROAD, KING'S HEATH) TPO 1965
tree-preservation-order: undefined
TPO 4
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.903203 52.419160,-1.903299 52.418994,-1.903318 52.418919,-1.903417 52.418754,-1.903411 52.418752,-1.903435 52.418694,-1.903451 52.418699,-1.903493 52.418587,-1.903508 52.418570,-1.903480 52.418543,-1.902906 52.418373,-1.901605 52.418029,-1.901298 52.418547,-1.903203 52.419160)))
point: POINT (-1.902429 52.418577)
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.