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: 1215
name: THE BIRMINGHAM (GOOD HOPE HOSPITAL, STAFF CAR PARK, SUTTON COLDFIELD) TPO 2007
tree-preservation-order: undefined
TPO 1215
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.809308 52.569567,-1.809210 52.569663,-1.809207 52.569684,-1.809258 52.569737,-1.809546 52.569840,-1.809621 52.569856,-1.809759 52.569859,-1.809897 52.569827,-1.810081 52.569607,-1.810047 52.569611,-1.809956 52.569685,-1.809916 52.569698,-1.809837 52.569707,-1.809325 52.569608,-1.809330 52.569596,-1.809325 52.569578,-1.809308 52.569567)))
point: POINT (-1.809598 52.569734)
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.