Your data has issues

There is a problem

• start-date column must be in YYYY-MM-DD format

Reference	Name	Tree preservation order	Uprn	Address text	Point	Geometry	Notes	Organisation	Felled date	Entry date	Start date	End date
0098		0098		Friary Grange Park, Winterbourne. Pine.						2025-06-11	Invalid date
0101		0101		Manor Grove, Mangotsfield. Pine.						2025-06-11	Invalid date
0102		0102		11 Mangotsfield Road. Horse Chestnut.						2025-06-11	Invalid date
0106		0106		Unknown. Oak.						2025-06-11	Invalid date
0107		0107		Manor Close, Coalpit Heath. Oak.						2025-06-11	Invalid date
0108		0108			POINT (-2.462532 51.517703)					2025-06-11	Invalid date
0110		0110		Land at Recreation Ground, Pucklechurch. unknown.						2025-06-11	Invalid date
0114		0114		Land at Meads Farm, Wickwar. Oak.						2025-06-11	Invalid date
0115		0115		Land at Flaxpits House, Winterbourne. Weeping Ash.						2025-06-11	Invalid date
0118		0118		Land at 19 Friary Grange Park, Winterbourne. Beech tree.						2025-06-11	Invalid date
0120		0120		Land at rear of 266 Badminton Road, Downend. Ash.						2025-06-11	Invalid date
0122		0122		43/45 High Street, Staple Hill. Copper Beach.						2025-06-11	Invalid date
0123		0123		Land at Poplar Farm. Oak.						2025-06-11	Invalid date
0125		0125		Lilliput Avenue, Chipping Sodbury. Populus Nigra.						2025-06-11	Invalid date
0131		0131		Hillhouse, Hillhouse Road, Staple Hill. Pine.						2025-06-11	Invalid date

Showing rows 51 to 100 of 1000

How to fix this issue

Your dataset is missing the start-date column.

The Tree guidance explains how to fix the issue:

start-date

The date from which the tree preservation order affects the tree, written in YYYY-MM-DD format.

Example: 1984-03-28

How to improve South Gloucestershire Council’s data

1. Fix the errors indicated
2. Use the check service to make sure the data meets the standard
3. Publish the updated data on the endpoint URL