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: 176
name: THE BIRMINGHAM (SITE OF 820, WALSALL ROAD, GREAT BARR) TPO 1975
tree-preservation-order: undefined
TPO 176
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.928188 52.540544,-1.928043 52.540451,-1.928230 52.540342,-1.928458 52.540192,-1.928212 52.540139,-1.928086 52.540090,-1.927990 52.540043,-1.927738 52.540196,-1.926970 52.540622,-1.926797 52.540710,-1.926803 52.540715,-1.926669 52.540790,-1.926865 52.540922,-1.927052 52.541016,-1.927704 52.540639,-1.927873 52.540750,-1.928188 52.540544)))
point: POINT (-1.927575 52.540531)
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.