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: 461
name: THE BIRMINGHAM (1 WENTWORTH ROAD, SUTTON COLDFIELD) TPO 1985
tree-preservation-order: undefined
TPO 461
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.830476 52.577364,-1.829921 52.577713,-1.830340 52.577994,-1.830507 52.577898,-1.830939 52.578164,-1.830944 52.578161,-1.831001 52.578199,-1.831009 52.578194,-1.831160 52.578294,-1.831541 52.578049,-1.830476 52.577364)))
point: POINT (-1.830725 52.577827)
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.