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: 71
name: THE BIRMINGHAM (FAIRLIE CRESCENT, KINGS NORTON) TPO 1970
tree-preservation-order: undefined
TPO 71
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.941703 52.402086,-1.942695 52.402131,-1.942931 52.402118,-1.943947 52.402031,-1.944380 52.401985,-1.944562 52.401936,-1.945881 52.401484,-1.945906 52.401468,-1.945910 52.401453,-1.945894 52.401437,-1.945861 52.401436,-1.945276 52.401555,-1.944353 52.401678,-1.943033 52.401804,-1.942247 52.401868,-1.942051 52.401902,-1.941848 52.401952,-1.941685 52.402009,-1.941612 52.402054,-1.941631 52.402084,-1.941703 52.402086)))
point: POINT (-1.943627 52.401874)
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.