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: 39
name: THE BIRMINGHAM (HOULDEY ROAD, WEST HEATH) TPO 1966
tree-preservation-order: undefined
TPO 39
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.960496 52.403869,-1.960649 52.403851,-1.960646 52.403841,-1.960815 52.403807,-1.960910 52.403786,-1.961016 52.403760,-1.961165 52.403737,-1.961145 52.403683,-1.961107 52.403596,-1.961099 52.403574,-1.960986 52.403308,-1.960834 52.403337,-1.960590 52.403388,-1.960530 52.403404,-1.960330 52.403451,-1.960366 52.403514,-1.960400 52.403587,-1.960400 52.403590,-1.960436 52.403679,-1.960496 52.403869)))
point: POINT (-1.960749 52.403589)
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.
entry-date: 2026-06-25
start-date
end-date

Your data is missing a tree-preservation-order.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.