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: 690
name: THE BIRMINGHAM (LAND ADJACENT 69 HAMSTEAD HALL ROAD, HANDSWORTH WOOD) TPO 1995
tree-preservation-order: undefined
TPO 690
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.934217 52.522271,-1.934200 52.522185,-1.934176 52.521946,-1.934024 52.521878,-1.933644 52.521998,-1.933657 52.522041,-1.933683 52.522038,-1.933706 52.522117,-1.933833 52.522227,-1.934106 52.522279,-1.934217 52.522271)))
point: POINT (-1.933967 52.522083)
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.