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: 51
name: THE BIRMINGHAM (SHOWELL GREEN LANE, SPARKHILL) TPO 1967
tree-preservation-order: undefined
TPO 51
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.869215 52.447263,-1.869045 52.447215,-1.868976 52.447277,-1.868716 52.447464,-1.868641 52.447460,-1.868214 52.447269,-1.868222 52.447259,-1.866962 52.446680,-1.866941 52.446694,-1.866617 52.446537,-1.866006 52.446907,-1.865753 52.447081,-1.865721 52.447064,-1.865646 52.447117,-1.866081 52.447356,-1.866846 52.447753,-1.867594 52.448098,-1.867624 52.448080,-1.867784 52.448149,-1.867899 52.448043,-1.868549 52.448208,-1.868938 52.447645,-1.869215 52.447263)))
point: POINT (-1.867407 52.447408)
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.