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: 1206
name: THE BIRMINGHAM (POLICE, FIRE STATION AND LAW COURTS, LICHFIELD ROAD, SUTTON COLDFIELD) TPO 2007
tree-preservation-order: undefined
TPO 1206
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.824704 52.568737,-1.824632 52.568223,-1.824155 52.568242,-1.824090 52.567636,-1.824174 52.567566,-1.823515 52.567288,-1.823364 52.567231,-1.823361 52.567249,-1.823259 52.567446,-1.823026 52.567876,-1.822775 52.568468,-1.822785 52.568469,-1.822766 52.568511,-1.822754 52.568510,-1.822704 52.568631,-1.822652 52.568796,-1.822638 52.568874,-1.824704 52.568737)))
point: POINT (-1.823626 52.568215)
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.