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: 77
name: THE BIRMINGHAM (CORNER OF HASSOP ROAD AND BEECHES ROAD, PERRY BARR) TPO 1969
tree-preservation-order: undefined
TPO 77
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.900665 52.538356,-1.900794 52.538399,-1.900744 52.538657,-1.900899 52.538696,-1.901013 52.538572,-1.901154 52.538608,-1.901185 52.538574,-1.901256 52.538595,-1.901273 52.538573,-1.901501 52.538626,-1.901662 52.538673,-1.901639 52.538700,-1.902021 52.538818,-1.902276 52.538762,-1.902208 52.538665,-1.902267 52.538628,-1.902280 52.538610,-1.902453 52.538532,-1.902732 52.538371,-1.901669 52.537987,-1.901672 52.537980,-1.901583 52.537932,-1.901311 52.537832,-1.901187 52.537772,-1.901055 52.537695,-1.901001 52.537729,-1.900761 52.537929,-1.900749 52.537929,-1.900721 52.537991,-1.900711 52.538046,-1.900704 52.538046,-1.900704 52.538167,-1.900712 52.538167,-1.900704 52.538237,-1.900695 52.538297,-1.900665 52.538356)))
point: POINT (-1.901534 52.538305)
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.