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: 226
name: THE BIRMINGHAM (45-61 MIDDLETON HALL ROAD, KINGS NORTON) TPO 1977
tree-preservation-order: undefined
TPO 226
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.935500 52.414932,-1.935511 52.414958,-1.935528 52.414974,-1.935594 52.414994,-1.936129 52.415066,-1.936713 52.415129,-1.937202 52.415157,-1.937140 52.414545,-1.937140 52.414313,-1.936463 52.414338,-1.936437 52.414662,-1.936255 52.414647,-1.936263 52.414619,-1.936092 52.414603,-1.936060 52.414734,-1.935887 52.414717,-1.935927 52.414560,-1.935461 52.414583,-1.935500 52.414932)))
point: POINT (-1.936464 52.414774)
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.