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: 374
name: THE BIRMINGHAM (LAND REAR OF NORTHFIELD ROAD, HARBORNE) TPO 1982
tree-preservation-order: undefined
TPO 374
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.967500 52.455089,-1.967359 52.454163,-1.967320 52.453969,-1.967295 52.453757,-1.967290 52.453636,-1.967295 52.453341,-1.967335 52.452990,-1.967099 52.453037,-1.966171 52.453271,-1.966316 52.453548,-1.966422 52.453772,-1.966587 52.453747,-1.966654 52.453877,-1.966738 52.454078,-1.966682 52.454091,-1.966752 52.454259,-1.966806 52.454259,-1.966821 52.454335,-1.966826 52.454568,-1.966786 52.454757,-1.966775 52.454761,-1.966728 52.454955,-1.966887 52.454979,-1.967368 52.455073,-1.967500 52.455089)))
point: POINT (-1.966967 52.453966)
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.