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: 1241
name: THE BIRMINGHAM (HAWTHORNDEN COURT, PENNS LANE, WALMLEY) TPO 2008
tree-preservation-order: undefined
TPO 1241
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.813487 52.535067,-1.813012 52.535120,-1.813003 52.535129,-1.812944 52.535135,-1.812933 52.535129,-1.812795 52.535145,-1.812820 52.536461,-1.813476 52.536444,-1.813458 52.536220,-1.813519 52.535647,-1.813498 52.535453,-1.813487 52.535067)))
point: POINT (-1.813151 52.535769)
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.