Tree preservation zone

There is a problem

reference: tpo1365
name: Sigglesthorne Village - 1972
tree-preservation-order: 43
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.246541 53.894832,-0.246272 53.894543,-0.246319 53.894536,-0.246362 53.894469,-0.246349 53.894298,-0.246137 53.893923,-0.246100 53.893824,-0.246048 53.893791,-0.246002 53.893775,-0.245606 53.893801,-0.245553 53.893784,-0.245489 53.893712,-0.245418 53.893648,-0.245306 53.893599,-0.244972 53.893578,-0.244770 53.893591,-0.244709 53.893610,-0.244498 53.893856,-0.244468 53.893931,-0.244480 53.894287,-0.244474 53.894592,-0.244654 53.894602,-0.245192 53.894559,-0.245426 53.894562,-0.245467 53.894709,-0.245666 53.894756,-0.245683 53.894823,-0.245710 53.894835,-0.246541 53.894832)))
point: POINT (-0.245415 53.894214)
notes
entry-date: 2026-03-17
start-date: start-date must be a real date
end-date

Your dataset is missing the start-date column.

The Tree preservation zone guidance explains how to fix the issue:

The date that the tree preservation order came into force, written in YYYY-MM-DD format.

Example: 1984-03-28