Tree preservation zone

There is a problem

453 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: 91/00645/C/1
name: Land South of Phoebe Lane, Halifax
tree-preservation-order: undefined
91/00645/C
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.853401 53.708833,-1.853349 53.708823,-1.853279 53.708823,-1.853306 53.708939,-1.853393 53.709219,-1.853455 53.709369,-1.853456 53.709386,-1.853777 53.709897,-1.853902 53.710051,-1.853975 53.710157,-1.854042 53.710227,-1.854070 53.710214,-1.854085 53.710196,-1.853852 53.709662,-1.853501 53.708969,-1.853442 53.708861,-1.853401 53.708833)),((-1.854413 53.710099,-1.854319 53.709893,-1.854550 53.709860,-1.854435 53.709680,-1.854335 53.709554,-1.854263 53.709490,-1.854134 53.709328,-1.854055 53.709197,-1.854037 53.709148,-1.854051 53.709141,-1.854040 53.709110,-1.854050 53.709104,-1.853931 53.708929,-1.853815 53.708715,-1.853757 53.708572,-1.853671 53.708040,-1.853328 53.708064,-1.853392 53.708166,-1.853453 53.708235,-1.853482 53.708255,-1.853496 53.708432,-1.853527 53.708613,-1.853568 53.708732,-1.853649 53.708915,-1.853741 53.709095,-1.853831 53.709257,-1.854132 53.709719,-1.854232 53.709892,-1.854254 53.709914,-1.854333 53.710087,-1.854365 53.710103,-1.854413 53.710099)))
point: POINT (-1.853813 53.709179)
notes: Sycamore (110), Willow (12)
entry-date: 2026-05-10
start-date
end-date: 1991-11-04

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.