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: 337
name: THE BIRMINGHAM (38, 40, 42 AND 44 STREETLY LANE, SUTTON COLDFIELD) TPO 1981
tree-preservation-order: undefined
TPO 337
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.849776 52.588766,-1.849305 52.588514,-1.849513 52.588343,-1.849523 52.588348,-1.849563 52.588317,-1.849802 52.588090,-1.849416 52.588030,-1.848346 52.587822,-1.848227 52.588068,-1.848059 52.588293,-1.847684 52.588653,-1.847472 52.588845,-1.847782 52.588994,-1.847652 52.589125,-1.848189 52.589387,-1.848409 52.589218,-1.848442 52.589234,-1.848953 52.588805,-1.849390 52.589059,-1.849245 52.589148,-1.849371 52.589231,-1.849571 52.589126,-1.849593 52.589141,-1.849994 52.588910,-1.849751 52.588779,-1.849776 52.588766)))
point: POINT (-1.848688 52.588599)
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.