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: 830
name: THE BIRMINGHAM (LAND ADJOINING 51 AND 76 TUDOR HILL, SUTTON COLDFIELD) TPO 1999
tree-preservation-order: undefined
TPO 830
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.834924 52.570607,-1.834970 52.570707,-1.835015 52.570726,-1.835102 52.570838,-1.835202 52.571169,-1.835425 52.571256,-1.835538 52.571287,-1.835477 52.571031,-1.835406 52.570812,-1.835319 52.570705,-1.835258 52.570643,-1.835222 52.570554,-1.834924 52.570607)))
point: POINT (-1.83526 52.570904)
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.