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: 425
name: THE BIRMINGHAM (HAWTHORN HOUSE, HAMSTEAD HALL ROAD, HANDSWORTH WOOD) TPO 1983
tree-preservation-order: undefined
TPO 425
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.936062 52.521170,-1.936010 52.520679,-1.935865 52.520650,-1.935871 52.520612,-1.935803 52.520434,-1.935591 52.520239,-1.935456 52.520129,-1.935004 52.519949,-1.934813 52.519892,-1.934743 52.519886,-1.934667 52.519868,-1.934577 52.519827,-1.934190 52.520000,-1.934049 52.520079,-1.933877 52.520206,-1.934531 52.520607,-1.934349 52.520700,-1.934236 52.520774,-1.934181 52.520856,-1.934198 52.521010,-1.934196 52.521066,-1.934122 52.521150,-1.933948 52.521292,-1.933950 52.521335,-1.934075 52.521466,-1.934100 52.521477,-1.934118 52.521515,-1.934563 52.521430,-1.934580 52.521524,-1.934618 52.521522,-1.934632 52.521584,-1.935193 52.521538,-1.936062 52.521170)))
point: POINT (-1.934968 52.520758)
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.