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: 686
name: THE BIRMINGHAM (412 BARROWS LANE, SHELDON) TPO 1995
tree-preservation-order: undefined
TPO 686
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.790210 52.461216,-1.790256 52.461188,-1.790292 52.461153,-1.790446 52.461068,-1.790514 52.461039,-1.790523 52.461047,-1.790767 52.460912,-1.790974 52.460871,-1.791361 52.460778,-1.791419 52.460775,-1.791513 52.460789,-1.791554 52.460805,-1.791520 52.460707,-1.791462 52.460700,-1.791223 52.460535,-1.791100 52.460491,-1.791027 52.460476,-1.790914 52.460470,-1.790762 52.460480,-1.790584 52.460573,-1.790426 52.460689,-1.790250 52.460793,-1.789916 52.460949,-1.789832 52.460971,-1.789976 52.461120,-1.790169 52.461249,-1.790210 52.461216)))
point: POINT (-1.790654 52.460809)
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.