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: 754
name: THE BIRMINGHAM (FARNBOROUGH ROAD CASTLE VALE, PUBLIC OPEN SPACE) TPO 1997
tree-preservation-order: undefined
TPO 754
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.787109 52.514696,-1.786409 52.514836,-1.786444 52.514907,-1.786724 52.514853,-1.786874 52.515149,-1.786669 52.515188,-1.786771 52.515381,-1.787674 52.515224,-1.787668 52.514952,-1.787650 52.514896,-1.787626 52.514860,-1.787585 52.514829,-1.787506 52.514813,-1.787416 52.514805,-1.787277 52.514809,-1.787160 52.514749,-1.787109 52.514696)))
point: POINT (-1.787143 52.515031)
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.