Tree preservation zone

There is a problem

reference: tpo1371
name: Sigglesthorne Village - 1972
tree-preservation-order: 43
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-0.242732 53.896981,-0.242694 53.896913,-0.242664 53.896829,-0.242668 53.896742,-0.242654 53.896595,-0.242709 53.896406,-0.242697 53.896367,-0.242645 53.896334,-0.242559 53.896305,-0.242452 53.896288,-0.242345 53.896302,-0.242282 53.896349,-0.242298 53.896606,-0.242330 53.896805,-0.242311 53.896939,-0.242259 53.897061,-0.242008 53.897287,-0.241976 53.897421,-0.242031 53.897540,-0.242082 53.897604,-0.242188 53.897616,-0.242289 53.897615,-0.242344 53.897584,-0.242367 53.897517,-0.242340 53.897367,-0.242357 53.897284,-0.242447 53.897210,-0.242707 53.897079,-0.242728 53.897056,-0.242732 53.896981)))
point: POINT (-0.242394 53.896945)
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