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: 839
name: THE BIRMINGHAM (LAND AT SPRINGFIELD ROAD/ SIGNAL HAYES ROAD, SUTTON COLDFIELD) TPO 1999
tree-preservation-order: undefined
TPO 839
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.793935 52.552216,-1.794006 52.552219,-1.794086 52.552206,-1.794440 52.552101,-1.794619 52.552030,-1.794796 52.551952,-1.795064 52.551806,-1.795282 52.551646,-1.795298 52.551647,-1.794540 52.551430,-1.794161 52.551316,-1.794167 52.551310,-1.792920 52.550960,-1.792435 52.550816,-1.792373 52.550782,-1.792595 52.550652,-1.792681 52.550581,-1.792340 52.550450,-1.791949 52.550326,-1.791853 52.550307,-1.791864 52.550298,-1.791729 52.550251,-1.790515 52.549882,-1.790538 52.549846,-1.790071 52.549731,-1.790117 52.549616,-1.789762 52.549529,-1.789619 52.549617,-1.789623 52.549626,-1.789712 52.549661,-1.789879 52.549920,-1.790110 52.550203,-1.790275 52.550368,-1.790491 52.550543,-1.790769 52.550751,-1.791073 52.550940,-1.791621 52.551201,-1.792145 52.551424,-1.792364 52.551509,-1.792782 52.551693,-1.793386 52.551999,-1.793450 52.552042,-1.793727 52.552159,-1.793935 52.552216)))
point: POINT (-1.792435 52.551037)
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.