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: 642
name: THE BIRMINGHAM (SORRENTO MATERNITY HOSPITAL, WAKE GREEN ROAD, MOSELEY) TPO 1994
tree-preservation-order: undefined
TPO 642
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.881839 52.446835,-1.881993 52.446671,-1.882052 52.446700,-1.882165 52.446552,-1.882571 52.445955,-1.882563 52.445952,-1.882653 52.445817,-1.882780 52.445648,-1.882525 52.445523,-1.882401 52.445440,-1.882210 52.445273,-1.882242 52.445243,-1.881795 52.444824,-1.881683 52.444726,-1.881641 52.444714,-1.881591 52.444713,-1.881548 52.444730,-1.881331 52.444919,-1.880118 52.445998,-1.880747 52.446261,-1.880785 52.446221,-1.881003 52.446313,-1.880973 52.446337,-1.881262 52.446440,-1.881509 52.446513,-1.881132 52.446927,-1.881575 52.447087,-1.881701 52.446957,-1.881715 52.446944,-1.881729 52.446949,-1.881839 52.446835)))
point: POINT (-1.881551 52.445851)
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.