Tree preservation zone

There is a problem

reference: 291
name
tree-preservation-order: Land At Allotment Gardens Chessington Hill Park Chessington
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-0.291349 51.362983,-0.291322 51.362988,-0.291297 51.362996,-0.291275 51.363006,-0.291256 51.363020,-0.291242 51.363035,-0.291234 51.363052,-0.291230 51.363069,-0.291232 51.363087,-0.291240 51.363104,-0.291253 51.363119,-0.291270 51.363133,-0.291291 51.363145,-0.291316 51.363153,-0.291342 51.363159,-0.291370 51.363161,-0.291398 51.363160,-0.291425 51.363155,-0.291450 51.363147,-0.291472 51.363136,-0.291491 51.363123,-0.291504 51.363108,-0.291513 51.363091,-0.291517 51.363073,-0.291514 51.363056,-0.291507 51.363039,-0.291494 51.363023,-0.291477 51.363009,-0.291456 51.362998,-0.291431 51.362989,-0.291405 51.362984,-0.291377 51.362982,-0.291349 51.362983)))
point: POINT (-0.291373 51.363071)
notes
entry-date: 2023-09-26
start-date: start-date must be a real date
end-date

Your data is missing a start-date.

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