Conservation area

There is a problem

reference: 2703
name: Highfield Cottages
designation-date: 1993-01-13
document-url: https://www.derby.gov.uk/media/derbycitycouncil/contentassets/documents/environmentandplanning/conservation/DerbyCityCouncil-HighfieldCottagesConservationArea.pdf
documentation-url: https://www.derby.gov.uk/environment-and-planning/conservation/conservation-areas/
geometry: MULTIPOLYGON (((-1.445508 52.921531,-1.445520 52.921541,-1.445545 52.921514,-1.446308 52.920639,-1.446039 52.920550,-1.445805 52.920491,-1.445591 52.920755,-1.445200 52.920637,-1.445091 52.920613,-1.444856 52.920947,-1.444714 52.921166,-1.444604 52.921135,-1.444575 52.921172,-1.444386 52.921185,-1.444262 52.921241,-1.443912 52.921106,-1.443770 52.921252,-1.444440 52.921404,-1.444623 52.921475,-1.444792 52.921254,-1.444906 52.921290,-1.445047 52.921347,-1.445028 52.921372,-1.445186 52.921421,-1.445203 52.921399,-1.445382 52.921457,-1.445508 52.921531)))
point: POINT (-1.44528 52.921038)
notes: Best Map is shown on page 4 of the appraisal document.
organisation
entry-date: entry-date must be a real date
2025-04-01
start-date: 1993-01-13
end-date

Your dataset is missing the entry-date column.

The Conservation area guidance explains how to fix the issue:

The date the record was last updated.

If the entity has never been updated, enter the same date as start-date.

Write in YYYY-MM-DD format.

Example:

2022-12-20

With dates, some data is better than no data, so: