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: 1322
name: THE BIRMINGHAM (TRIDENT CLOSE, OFF GRAVELLY LANE, ERDINGTON) TPO 2009
tree-preservation-order: undefined
TPO 1322
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.836870 52.535519,-1.836277 52.535305,-1.836620 52.534955,-1.835762 52.534618,-1.835207 52.534390,-1.835150 52.534462,-1.835020 52.534695,-1.835011 52.534692,-1.834883 52.534915,-1.834734 52.535044,-1.834842 52.535086,-1.834822 52.535106,-1.834995 52.535173,-1.834815 52.535328,-1.835073 52.535438,-1.835096 52.535419,-1.835439 52.535567,-1.835798 52.535275,-1.836774 52.535673,-1.836912 52.535519,-1.836870 52.535519)))
point: POINT (-1.835667 52.535048)
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.