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: tpo1948
name: Walkington - 1972
tree-preservation-order: undefined
262
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.490704 53.822805,-0.490881 53.822914,-0.491010 53.822963,-0.491150 53.822989,-0.491939 53.822838,-0.491358 53.821939,-0.491189 53.821628,-0.490672 53.821740,-0.490123 53.820810,-0.489759 53.820886,-0.489660 53.820929,-0.489471 53.820938,-0.489380 53.820908,-0.489310 53.820852,-0.489280 53.820810,-0.489268 53.820755,-0.489297 53.820728,-0.489426 53.820685,-0.489458 53.820566,-0.489102 53.820596,-0.488997 53.820262,-0.488634 53.820288,-0.488641 53.820377,-0.488563 53.820590,-0.488800 53.820991,-0.487649 53.821137,-0.487844 53.821586,-0.487903 53.821616,-0.487951 53.821694,-0.489169 53.821620,-0.489291 53.821833,-0.489417 53.821815,-0.489457 53.821873,-0.489604 53.821869,-0.489681 53.821879,-0.490278 53.821807,-0.490323 53.821950,-0.490371 53.822010,-0.490489 53.822083,-0.490598 53.822120,-0.490709 53.822127,-0.490878 53.822432,-0.491522 53.822411,-0.491692 53.822734,-0.490885 53.822801,-0.490767 53.822728,-0.490704 53.822805)))
point: POINT (-0.489703 53.821515)
notes
entry-date: 2026-03-17
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.