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: 308
name: THE BIRMINGHAM (LAND FRONTING MIDLAND DRIVE, SUTTON COLDFIELD) TPO 1980
tree-preservation-order: undefined
TPO 308
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.821858 52.565576,-1.821499 52.565672,-1.821285 52.565696,-1.821220 52.565692,-1.821100 52.565669,-1.820994 52.565626,-1.820610 52.565444,-1.820397 52.565326,-1.820318 52.565372,-1.820661 52.565595,-1.820615 52.565622,-1.821005 52.565845,-1.821566 52.566141,-1.821912 52.565994,-1.822285 52.565862,-1.822208 52.565736,-1.822264 52.565722,-1.822194 52.565634,-1.822198 52.565623,-1.822085 52.565472,-1.821858 52.565576)))
point: POINT (-1.821503 52.565772)
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.