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: 210
name: THE BIRMINGHAM (REAR OF 103 TO 129 CHURCH LANE, HANDSWORTH WOOD) TPO 1976
tree-preservation-order: undefined
TPO 210
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.925952 52.514250,-1.925881 52.514359,-1.926111 52.514416,-1.925907 52.514729,-1.926050 52.514763,-1.926475 52.514833,-1.927155 52.514961,-1.927150 52.514966,-1.927275 52.514990,-1.927555 52.515027,-1.927656 52.515032,-1.928169 52.514266,-1.927734 52.514156,-1.927776 52.514094,-1.927523 52.514030,-1.926809 52.513902,-1.926855 52.513826,-1.926327 52.513687,-1.926070 52.514082,-1.925952 52.514250)))
point: POINT (-1.92696 52.514406)
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.