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: 75
name: THE BIRMINGHAM (HAYFIELD ROAD AND WAKE GREEN ROAD, WAKE GREEN) TPO 1969
tree-preservation-order: undefined
TPO 75
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.869664 52.442820,-1.869687 52.442665,-1.869779 52.442544,-1.869820 52.442451,-1.869995 52.441884,-1.870524 52.441904,-1.870536 52.441733,-1.870734 52.441740,-1.870872 52.441138,-1.870236 52.441129,-1.869998 52.441110,-1.869769 52.441075,-1.869743 52.441077,-1.869706 52.441099,-1.869622 52.441085,-1.869623 52.441072,-1.869609 52.441066,-1.869560 52.441060,-1.869460 52.441459,-1.869482 52.441470,-1.869476 52.441512,-1.869458 52.441512,-1.869462 52.441564,-1.869444 52.441696,-1.869470 52.441697,-1.869443 52.441812,-1.869454 52.441839,-1.869450 52.441858,-1.869528 52.441863,-1.869487 52.441941,-1.869477 52.441939,-1.869236 52.442387,-1.869067 52.442529,-1.869087 52.442556,-1.869089 52.442572,-1.869049 52.442636,-1.869061 52.442652,-1.869170 52.442688,-1.869664 52.442820)))
point: POINT (-1.869923 52.441776)
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.