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: 604
name: THE BIRMINGHAM (SUTTON COLDFIELD RAILWAY STATION RAILWAY ROAD, SUTTON COLDFIELD) TPO 1992
tree-preservation-order: undefined
TPO 604
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.827097 52.564296,-1.827128 52.564233,-1.827094 52.564208,-1.826417 52.563978,-1.826388 52.563973,-1.826227 52.564183,-1.825975 52.564094,-1.825903 52.564195,-1.825996 52.564253,-1.825564 52.564739,-1.825511 52.564721,-1.825381 52.564818,-1.825349 52.564805,-1.825176 52.564919,-1.824712 52.565168,-1.824644 52.565125,-1.824203 52.565312,-1.824455 52.565372,-1.824661 52.565438,-1.824956 52.565618,-1.825053 52.565648,-1.825139 52.565661,-1.825258 52.565661,-1.825419 52.565647,-1.825480 52.565626,-1.825514 52.565607,-1.826414 52.564867,-1.827097 52.564296)))
point: POINT (-1.825791 52.564869)
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.