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: 451
name: THE BIRMINGHAM (METCHLEY ABBEY METCHLEY LANE, HARBORNE) TPO 1985
tree-preservation-order: undefined
TPO 451
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.946261 52.456888,-1.946096 52.456691,-1.946271 52.456391,-1.946363 52.456375,-1.946646 52.456426,-1.946773 52.456182,-1.945780 52.455978,-1.945539 52.456381,-1.945431 52.456609,-1.945116 52.457347,-1.945554 52.457374,-1.945698 52.457368,-1.945839 52.457432,-1.945890 52.457393,-1.945976 52.457290,-1.946042 52.457159,-1.946061 52.457087,-1.946084 52.457044,-1.946161 52.456962,-1.946261 52.456888)))
point: POINT (-1.945846 52.456694)
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.