Conservation area

There is a problem

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

Chalford Hill

reference: 8915
name: Chalford Hill
designation-date
document-url
documentation-url
geometry: MULTIPOLYGON (((-2.152645 51.722004,-2.152592 51.721964,-2.152542 51.721949,-2.152468 51.721847,-2.152343 51.721822,-2.152210 51.721897,-2.152099 51.721904,-2.152002 51.721899,-2.151922 51.721952,-2.151635 51.722085,-2.151565 51.722058,-2.151675 51.722121,-2.151691 51.722121,-2.151688 51.722128,-2.151646 51.722159,-2.151524 51.722209,-2.151455 51.722247,-2.151339 51.722334,-2.151315 51.722364,-2.151290 51.722409,-2.151291 51.722454,-2.151397 51.722684,-2.151369 51.722880,-2.151323 51.722882,-2.151307 51.722891,-2.151299 51.722908,-2.151298 51.722999,-2.151327 51.723063,-2.151327 51.723085,-2.151325 51.723106,-2.151294 51.723147,-2.151293 51.723163,-2.151350 51.723264,-2.151366 51.723311,-2.151347 51.723469,-2.151345 51.723556,-2.151308 51.723649,-2.151279 51.723699,-2.151168 51.723849,-2.151166 51.723865,-2.151188 51.723892,-2.151270 51.723900,-2.151197 51.723955,-2.151154 51.724017,-2.151070 51.724160,-2.150983 51.724355,-2.150669 51.724339,-2.150431 51.724292,-2.150365 51.723628,-2.150322 51.723630,-2.150306 51.723595,-2.150070 51.723567,-2.149919 51.723622,-2.149840 51.723622,-2.149813 51.723573,-2.149785 51.723551,-2.149656 51.723518,-2.149496 51.723491,-2.149473 51.723511,-2.149477 51.723550,-2.149179 51.723587,-2.149171 51.723614,-2.149159 51.723626,-2.149104 51.723654,-2.149113 51.723682,-2.149044 51.723711,-2.148980 51.723719,-2.148928 51.723741,-2.148702 51.723766,-2.148605 51.723835,-2.148510 51.723881,-2.148482 51.723879,-2.147853 51.723665,-2.147657 51.723863,-2.147539 51.723968,-2.147555 51.723980,-2.148163 51.724166,-2.147789 51.724445,-2.147613 51.724588,-2.147663 51.724624,-2.148071 51.725078,-2.148135 51.725185,-2.148147 51.725240,-2.148303 51.725616,-2.148382 51.725788,-2.148480 51.726030,-2.148525 51.726114,-2.148562 51.726174,-2.148719 51.726374,-2.148835 51.726507,-2.148854 51.726547,-2.149002 51.726762,-2.149107 51.726894,-2.149164 51.726955,-2.149210 51.726989,-2.149429 51.727286,-2.149618 51.727494,-2.150127 51.728006,-2.150274 51.728186,-2.150485 51.728367,-2.150839 51.728297,-2.150835 51.728292,-2.151225 51.728171,-2.151221 51.728144,-2.151635 51.728088,-2.151753 51.728082,-2.152105 51.728031,-2.152021 51.727780,-2.152098 51.727776,-2.152395 51.727849,-2.152528 51.727865,-2.152951 51.727816,-2.153392 51.727779,-2.153417 51.727599,-2.153411 51.727361,-2.153418 51.727335,-2.153953 51.727280,-2.154255 51.727241,-2.154398 51.727212,-2.154291 51.727499,-2.154274 51.727590,-2.154718 51.727670,-2.154977 51.727762,-2.155134 51.727793,-2.155397 51.727823,-2.155654 51.727817,-2.155919 51.727784,-2.155955 51.727773,-2.155984 51.727746,-2.156005 51.727705,-2.156258 51.727666,-2.156321 51.727668,-2.156336 51.727730,-2.156463 51.727747,-2.156475 51.727781,-2.156490 51.727786,-2.156633 51.727810,-2.156779 51.727813,-2.157009 51.727783,-2.157125 51.727755,-2.157487 51.727641,-2.157642 51.727612,-2.157513 51.727460,-2.157349 51.727287,-2.157208 51.727116,-2.157119 51.726990,-2.156938 51.726824,-2.156625 51.726364,-2.156449 51.726401,-2.156098 51.726545,-2.155900 51.726542,-2.155739 51.726609,-2.155715 51.726685,-2.155718 51.726713,-2.155737 51.726774,-2.155788 51.726884,-2.155522 51.726944,-2.155513 51.726910,-2.155477 51.726868,-2.155461 51.726836,-2.155418 51.726705,-2.155345 51.726543,-2.155315 51.726236,-2.155517 51.726166,-2.155483 51.726132,-2.155545 51.725886,-2.155440 51.725772,-2.155452 51.725703,-2.155544 51.725534,-2.155632 51.725412,-2.155610 51.725408,-2.155759 51.725178,-2.155767 51.725179,-2.155803 51.725139,-2.156069 51.724770,-2.156261 51.724450,-2.156352 51.724385,-2.156406 51.724333,-2.156440 51.724314,-2.156475 51.724340,-2.156511 51.724412,-2.156676 51.724433,-2.156803 51.724337,-2.156829 51.724297,-2.156933 51.724196,-2.156998 51.724156,-2.157140 51.724099,-2.157028 51.723995,-2.156955 51.723947,-2.156861 51.723906,-2.156709 51.723858,-2.156594 51.723628,-2.156563 51.723586,-2.156382 51.723392,-2.156283 51.723353,-2.156205 51.723346,-2.155909 51.723365,-2.155348 51.723361,-2.155231 51.723370,-2.155054 51.723402,-2.154911 51.723439,-2.154817 51.723450,-2.154781 51.723446,-2.154689 51.723395,-2.154632 51.723383,-2.154603 51.723389,-2.154552 51.723415,-2.154501 51.723498,-2.154453 51.723532,-2.154399 51.723520,-2.154234 51.723504,-2.154192 51.723463,-2.154059 51.723368,-2.153964 51.723265,-2.153789 51.723174,-2.153360 51.723006,-2.153351 51.722998,-2.153322 51.722901,-2.153253 51.722749,-2.153208 51.722660,-2.153143 51.722560,-2.153125 51.722536,-2.152919 51.722378,-2.152844 51.722327,-2.152661 51.722357,-2.152607 51.722290,-2.152593 51.722258,-2.152579 51.722163,-2.152582 51.722126,-2.152614 51.722031,-2.152645 51.722004)))
point: POINT (-2.152453 51.725417)
notes: No Appraisal document. No documents
organisation
entry-date: 2025-04-01
start-date: start-date must be a real date
end-date

How to fix this issue

Your dataset is missing the start-date column.

The Conservation area guidance explains how to fix the issue:

start-date

The date the validity of the record starts, written in YYYY-MM-DD format. Usually, this will be the same as the designation date. If anything about the conservation area has changed, for example, the boundary, it should be the date of that change.

Example:

1984-04-25

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

1984 is fine
1984-04 is better
1984-04-25 is brilliant

How to improve Historic England’s data

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