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: 896
name: THE BIRMINGHAM (LAND AT 1020 BRISTOL ROAD, SELLY OAK) TPO 1999
tree-preservation-order: undefined
TPO 896
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.946950 52.433269,-1.946364 52.433032,-1.946274 52.433121,-1.946211 52.433107,-1.946055 52.433255,-1.946094 52.433262,-1.946036 52.433379,-1.945952 52.433481,-1.945959 52.433495,-1.946452 52.433622,-1.946495 52.433608,-1.946567 52.433616,-1.946608 52.433594,-1.946950 52.433269)))
point: POINT (-1.94643 52.433345)
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.