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: 636
name: THE BIRMINGHAM (33 TUDOR HILL, SUTTON COLDFIELD) TPO 1993
tree-preservation-order: undefined
TPO 636
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.834500 52.569523,-1.834444 52.569482,-1.834402 52.569409,-1.834420 52.569315,-1.834386 52.568960,-1.833916 52.569013,-1.833950 52.569227,-1.832402 52.569318,-1.832023 52.569292,-1.832072 52.569423,-1.832622 52.569721,-1.832850 52.569699,-1.833152 52.569688,-1.833766 52.569626,-1.833752 52.569611,-1.834500 52.569523)))
point: POINT (-1.833394 52.56941)
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.