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: 811
name: THE BIRMINGHAM (2-5 HIGHFIELD ROAD, 76-96 HAGLEY ROAD AND CAR PARKING ADJOINING CREST HOUSE, 6 HIGHFIELD ROAD, EDGBASTON) TPO 1999
tree-preservation-order: undefined
TPO 811
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.929853 52.471677,-1.929814 52.471346,-1.929501 52.470814,-1.929482 52.470758,-1.929452 52.470765,-1.929441 52.470747,-1.928407 52.470886,-1.928231 52.470919,-1.928242 52.470952,-1.926658 52.471173,-1.926660 52.471179,-1.926163 52.471241,-1.926140 52.471258,-1.927170 52.471819,-1.927355 52.471856,-1.928147 52.471788,-1.929853 52.471677)))
point: POINT (-1.928254 52.471351)
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.