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: 675
name: THE BIRMINGHAM (THE RADLEYS/MACKADOWN LANE, SHELDON) TPO 1994
tree-preservation-order: undefined
TPO 675
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.768700 52.469034,-1.768516 52.468901,-1.768434 52.468861,-1.768245 52.468693,-1.768106 52.468639,-1.767947 52.468514,-1.767255 52.468871,-1.767207 52.468911,-1.767186 52.468968,-1.767198 52.469009,-1.767395 52.469354,-1.767450 52.469495,-1.767521 52.469563,-1.767737 52.469445,-1.768415 52.469130,-1.768700 52.469034)))
point: POINT (-1.767844 52.469017)
notes: The shaded area represents those properties which fall within the outline of a Tree Preservation Order. To precisely identify trees protected by the Order, you can request a copy of the tree preservation order at the following link.
organisation
entry-date: 2025-11-30
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.