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: 758
name: THE BIRMINGHAM (STAPLE LODGE ROAD, NORTHFIELD) TPO 1997
tree-preservation-order: undefined
TPO 758
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.957485 52.405376,-1.957702 52.405366,-1.957679 52.405196,-1.957706 52.405193,-1.957520 52.404731,-1.956563 52.404979,-1.955894 52.405137,-1.954271 52.405439,-1.954006 52.405496,-1.953864 52.405530,-1.953528 52.405630,-1.953267 52.405733,-1.953415 52.405784,-1.953611 52.405831,-1.953821 52.405863,-1.954345 52.405923,-1.954450 52.405925,-1.954692 52.405905,-1.954910 52.405867,-1.955375 52.405730,-1.956107 52.405605,-1.956958 52.405483,-1.956954 52.405472,-1.957214 52.405434,-1.957211 52.405413,-1.957217 52.405409,-1.957472 52.405396,-1.957470 52.405377,-1.957485 52.405376)))
point: POINT (-1.95574 52.405409)
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.