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: 435
name: THE BIRMINGHAM (SITES OF 70 GOLDTHORNE AVENUE & 113 RECTORY PARK ROAD, SHELDON) TPO 1984
tree-preservation-order: undefined
TPO 435
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.774725 52.454165,-1.774709 52.454001,-1.774710 52.453906,-1.774782 52.453872,-1.774304 52.453856,-1.774270 52.454080,-1.774275 52.454101,-1.774286 52.454111,-1.774391 52.454176,-1.774725 52.454165)))
point: POINT (-1.774504 52.454015)
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.