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: 483
name: THE BIRMINGHAM (NEWHALL MILL NEWHALL VALLEY, SUTTON COLDFIELD) TPO 1986
tree-preservation-order: undefined
TPO 483
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.807157 52.548000,-1.806997 52.547894,-1.806532 52.547904,-1.806440 52.547643,-1.806347 52.547647,-1.806020 52.547344,-1.805920 52.547348,-1.805906 52.547873,-1.805849 52.547957,-1.805614 52.548355,-1.805496 52.548582,-1.805450 52.548708,-1.805444 52.548767,-1.805474 52.548772,-1.805499 52.548759,-1.805515 52.548676,-1.805570 52.548564,-1.805632 52.548472,-1.805763 52.548377,-1.806660 52.548241,-1.807176 52.548079,-1.807157 52.548000)))
point: POINT (-1.806257 52.547995)
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.