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Reference	Name	Document URL	Documentation URL	Geometry	Point	Notes	Entry date	Start date
CA1	Lydford	https://www.dartmoor.gov.uk/__data/assets/pdf_file/0032/164993/Lydford-2011.pdf	https://www.dartmoor.gov.uk/living-and-working/planning/listed-buildings-and-conservation-areas/conservation-areas	MULTIPOLYGON (((-4.104757 50.643111,-4.104950 50.643088,-4.105069 50.643091,-4.105117 50.643109,-4.105200 50.643170,-4.105262 50.643256,-4.105267 50.643280,-4.105256 50.643332,-4.105148 50.643466,-4.105029 50.643572,-4.104833 50.643693,-4.105250 50.643953,-4.105157 50.643995,-4.104907 50.644081,-4.104673 50.644231,-4.104641 50.644273,-4.104548 50.644305,-4.104468 50.644408,-4.104393 50.644444,-4.104351 50.644508,-4.104337 50.644522,-4.104289 50.644544,-4.104260 50.644582,-4.104203 50.644578,-4.104151 50.644604,-4.104105 50.644703,-4.104101 50.644754,-4.104012 50.644937,-4.103948 50.645148,-4.103678 50.645398,-4.103626 50.645415,-4.103505 50.645385,-4.103261 50.645497,-4.103092 50.645545,-4.103266 50.645734,-4.103374 50.645866,-4.103558 50.646035,-4.103666 50.646155,-4.103785 50.646306,-4.103998 50.646421,-4.104440 50.646626,-4.104610 50.646739,-4.104672 50.646760,-4.104781 50.646819,-4.104880 50.646881,-4.105061 50.647013,-4.105110 50.647066,-4.105619 50.647284,-4.105656 50.647309,-4.105931 50.647375,-4.106018 50.647341,-4.106525 50.647449,-4.106979 50.647524,-4.107184 50.647577,-4.107345 50.647601,-4.107422 50.647563,-4.107402 50.647525,-4.107488 50.647391,-4.107790 50.647080,-4.108017 50.646803,-4.108259 50.646547,-4.108492 50.646237,-4.108670 50.646022,-4.108751 50.645910,-4.108819 50.645846,-4.108925 50.645782,-4.108548 50.645580,-4.108625 50.645552,-4.108726 50.645486,-4.108822 50.645384,-4.109023 50.645248,-4.109177 50.645194,-4.109321 50.645163,-4.109388 50.645134,-4.109428 50.645067,-4.109485 50.645000,-4.109394 50.644936,-4.109607 50.644802,-4.109880 50.644498,-4.110082 50.644314,-4.110122 50.644287,-4.110142 50.644262,-4.110146 50.644243,-4.110130 50.644201,-4.110258 50.644148,-4.110447 50.644056,-4.110539 50.643988,-4.110600 50.643926,-4.110641 50.643863,-4.110676 50.643789,-4.110685 50.643719,-4.110739 50.643614,-4.110843 50.643496,-4.110900 50.643345,-4.110935 50.643296,-4.111288 50.643151,-4.111460 50.643005,-4.111394 50.642742,-4.111271 50.642700,-4.111221 50.642643,-4.111085 50.642526,-4.111077 50.642493,-4.111020 50.642381,-4.110963 50.642276,-4.110924 50.642229,-4.110743 50.642207,-4.110585 50.642163,-4.110553 50.642122,-4.109858 50.641867,-4.109285 50.641861,-4.108979 50.641880,-4.108804 50.641902,-4.108650 50.641931,-4.108575 50.641956,-4.108546 50.642035,-4.108424 50.642190,-4.108340 50.642326,-4.108283 50.642473,-4.108320 50.642486,-4.108304 50.642499,-4.107803 50.642704,-4.107761 50.642700,-4.107743 50.642719,-4.107708 50.642720,-4.107653 50.642754,-4.107292 50.642890,-4.107156 50.642895,-4.107104 50.642823,-4.107060 50.642821,-4.106993 50.642804,-4.106795 50.642703,-4.106688 50.642665,-4.106547 50.642572,-4.106481 50.642518,-4.106406 50.642539,-4.106333 50.642528,-4.106270 50.642504,-4.106125 50.642471,-4.106056 50.642488,-4.106002 50.642532,-4.105847 50.642688,-4.105756 50.642761,-4.105704 50.642787,-4.105634 50.642802,-4.105616 50.642791,-4.105594 50.642752,-4.105537 50.642773,-4.105497 50.642775,-4.105332 50.642720,-4.105206 50.642762,-4.105012 50.642805,-4.104895 50.642807,-4.104824 50.642897,-4.104797 50.642955,-4.104752 50.643001,-4.104739 50.643032,-4.104736 50.643076,-4.104757 50.643111)))	POINT (-4.107239 50.644604)		2026-04-03	Invalid date
CA20	Dunsford	https://www.dartmoor.gov.uk/__data/assets/pdf_file/0023/165038/Dunsford-Appr-2011-complete.pdf	https://www.dartmoor.gov.uk/living-and-working/planning/listed-buildings-and-conservation-areas/conservation-areas	MULTIPOLYGON (((-3.679536 50.690254,-3.679542 50.690296,-3.679652 50.690677,-3.679692 50.690664,-3.679879 50.690680,-3.679851 50.690713,-3.679847 50.690763,-3.679861 50.690788,-3.679896 50.690800,-3.679923 50.690911,-3.679953 50.690964,-3.680018 50.691031,-3.680148 50.691125,-3.680274 50.691235,-3.680377 50.691350,-3.680910 50.691077,-3.681058 50.691136,-3.681171 50.691276,-3.681451 50.691591,-3.681622 50.691808,-3.681718 50.691909,-3.681938 50.692058,-3.682068 50.692081,-3.682113 50.692104,-3.682164 50.692148,-3.682358 50.692028,-3.682732 50.691832,-3.683033 50.691707,-3.683058 50.691688,-3.683022 50.691587,-3.682803 50.691308,-3.682759 50.691231,-3.682752 50.691196,-3.682748 50.690998,-3.682615 50.690521,-3.682586 50.690390,-3.682596 50.690390,-3.682566 50.690187,-3.682777 50.690187,-3.682779 50.690135,-3.683016 50.690140,-3.683016 50.690214,-3.683101 50.690229,-3.683495 50.690241,-3.683552 50.690342,-3.683738 50.690296,-3.683857 50.690293,-3.683859 50.690301,-3.683886 50.690304,-3.683882 50.690277,-3.683894 50.690205,-3.683913 50.690205,-3.683911 50.690171,-3.683938 50.690145,-3.683949 50.690052,-3.684473 50.690057,-3.684490 50.689936,-3.684579 50.689946,-3.684611 50.689957,-3.685423 50.690260,-3.685597 50.690354,-3.685698 50.690438,-3.685748 50.690403,-3.685801 50.690382,-3.685865 50.690344,-3.685916 50.690296,-3.686043 50.690137,-3.686053 50.690115,-3.686040 50.690114,-3.686060 50.690060,-3.686080 50.690047,-3.686083 50.689968,-3.686142 50.689955,-3.686110 50.689875,-3.686089 50.689865,-3.686038 50.689812,-3.686030 50.689756,-3.686408 50.689753,-3.686457 50.689643,-3.686339 50.689625,-3.686240 50.689624,-3.686211 50.689578,-3.686066 50.689412,-3.686056 50.689414,-3.685909 50.689261,-3.685847 50.689277,-3.685712 50.689170,-3.685633 50.689121,-3.685565 50.689097,-3.685506 50.689093,-3.685455 50.689104,-3.685394 50.689135,-3.685349 50.689166,-3.685185 50.689312,-3.685139 50.689222,-3.684869 50.689293,-3.684732 50.689352,-3.684580 50.689405,-3.684503 50.689350,-3.684264 50.689284,-3.684290 50.689473,-3.683783 50.689545,-3.683778 50.689527,-3.683709 50.689531,-3.683706 50.689517,-3.683717 50.689514,-3.683688 50.689476,-3.683606 50.689397,-3.683205 50.689447,-3.683195 50.689429,-3.683148 50.689397,-3.683031 50.689369,-3.683014 50.689359,-3.683001 50.689328,-3.682986 50.689321,-3.682853 50.689285,-3.682044 50.689450,-3.681807 50.689509,-3.681653 50.689275,-3.681586 50.689136,-3.681557 50.689064,-3.681492 50.688834,-3.681487 50.688765,-3.681424 50.688792,-3.681387 50.688832,-3.681396 50.688869,-3.681433 50.688895,-3.681455 50.689043,-3.681230 50.689074,-3.681184 50.689248,-3.681378 50.689378,-3.681421 50.689394,-3.681632 50.689702,-3.681238 50.689795,-3.680854 50.689896,-3.680561 50.689891,-3.680480 50.689843,-3.680433 50.689837,-3.680339 50.689846,-3.680286 50.689859,-3.680115 50.689911,-3.679966 50.689990,-3.679803 50.690032,-3.679809 50.690039,-3.679766 50.690056,-3.679631 50.690159,-3.679587 50.690163,-3.679540 50.690236,-3.679536 50.690254)))	POINT (-3.682524 50.690324)	Boundary amended 04/03/2011	2026-04-03	Invalid date
CA21	Ashburton	https://www.dartmoor.gov.uk/__data/assets/pdf_file/0031/164983/1Ashburton-web-quality.pdf	https://www.dartmoor.gov.uk/living-and-working/planning/listed-buildings-and-conservation-areas/conservation-areas	MULTIPOLYGON (((-3.750265 50.516469,-3.750412 50.516561,-3.750607 50.516699,-3.750940 50.516892,-3.750991 50.516935,-3.750706 50.517063,-3.750782 50.517153,-3.750730 50.517170,-3.750788 50.517252,-3.750814 50.517335,-3.751071 50.517567,-3.751093 50.517559,-3.751141 50.517576,-3.751756 50.517821,-3.752113 50.517942,-3.752642 50.518141,-3.752662 50.518045,-3.752814 50.518051,-3.752840 50.517882,-3.752828 50.517843,-3.752965 50.517841,-3.753135 50.517746,-3.753164 50.517744,-3.753712 50.517523,-3.754021 50.517362,-3.754487 50.517100,-3.754735 50.517014,-3.754963 50.516963,-3.755179 50.516818,-3.755338 50.516883,-3.755478 50.516959,-3.755817 50.516847,-3.756248 50.517074,-3.756363 50.517143,-3.756385 50.517176,-3.756433 50.517209,-3.756517 50.517292,-3.756751 50.517327,-3.756868 50.517192,-3.757164 50.516968,-3.757189 50.516920,-3.757294 50.516904,-3.757433 50.516855,-3.757502 50.516839,-3.757520 50.516851,-3.757554 50.516837,-3.757699 50.516805,-3.757816 50.516971,-3.757816 50.516984,-3.757752 50.517091,-3.757758 50.517132,-3.757780 50.517157,-3.757913 50.517256,-3.758031 50.517367,-3.758143 50.517525,-3.758186 50.517574,-3.758316 50.517633,-3.758378 50.517677,-3.758401 50.517713,-3.758617 50.517657,-3.758630 50.517742,-3.758628 50.517784,-3.758614 50.517826,-3.758850 50.517817,-3.758858 50.517902,-3.758900 50.517907,-3.758911 50.517986,-3.759013 50.517984,-3.759038 50.517971,-3.759085 50.517972,-3.759104 50.517843,-3.759153 50.517759,-3.759245 50.517641,-3.759285 50.517554,-3.759319 50.517445,-3.759330 50.517405,-3.759329 50.517328,-3.759316 50.517272,-3.759294 50.517237,-3.759073 50.517028,-3.758878 50.516972,-3.758801 50.516940,-3.758658 50.516815,-3.758225 50.516470,-3.757611 50.516131,-3.757440 50.516014,-3.757482 50.515993,-3.757480 50.515966,-3.758293 50.515727,-3.758299 50.515699,-3.758291 50.515672,-3.758250 50.515600,-3.758189 50.515523,-3.758073 50.515416,-3.758030 50.515341,-3.758003 50.515310,-3.758351 50.515230,-3.758316 50.514990,-3.758398 50.514968,-3.758405 50.514980,-3.758486 50.514955,-3.758436 50.514835,-3.758432 50.514749,-3.758515 50.514672,-3.758519 50.514590,-3.758459 50.514584,-3.758486 50.514558,-3.758483 50.514460,-3.758496 50.514393,-3.758571 50.514395,-3.758555 50.514211,-3.758558 50.514035,-3.759086 50.514009,-3.759059 50.513909,-3.759030 50.513901,-3.759024 50.513875,-3.759035 50.513853,-3.758971 50.513672,-3.758977 50.513669,-3.758884 50.513575,-3.758841 50.513551,-3.758818 50.513569,-3.758732 50.513511,-3.758662 50.513476,-3.758608 50.513435,-3.758481 50.513411,-3.758461 50.513437,-3.758435 50.513400,-3.758378 50.513417,-3.758175 50.513435,-3.758107 50.513539,-3.757984 50.513562,-3.757697 50.513647,-3.757630 50.513549,-3.756891 50.513860,-3.756892 50.513786,-3.756869 50.513633,-3.756863 50.513607,-3.756834 50.513563,-3.756722 50.513470,-3.756477 50.513295,-3.756246 50.513149,-3.756178 50.513156,-3.756101 50.513191,-3.755460 50.513545,-3.755420 50.513543,-3.755452 50.513650,-3.755521 50.513831,-3.755589 50.514139,-3.755586 50.514173,-3.755415 50.514225,-3.755213 50.514011,-3.755100 50.513979,-3.755219 50.513728,-3.755239 50.513655,-3.755278 50.513658,-3.755314 50.513601,-3.755114 50.513578,-3.754749 50.513505,-3.754675 50.513478,-3.754631 50.513569,-3.754595 50.513584,-3.754448 50.513788,-3.754349 50.513945,-3.754284 50.514133,-3.754136 50.514427,-3.754141 50.514459,-3.754169 50.514482,-3.753820 50.514350,-3.753709 50.514283,-3.754095 50.514005,-3.753912 50.513945,-3.753753 50.513910,-3.753484 50.513887,-3.753469 50.513896,-3.753259 50.513787,-3.752992 50.514053,-3.752512 50.514445,-3.752570 50.514474,-3.752643 50.514550,-3.752776 50.514738,-3.752842 50.514812,-3.753111 50.515049,-3.752747 50.515259,-3.752718 50.515263,-3.752721 50.515294,-3.752550 50.515379,-3.752086 50.515549,-3.751970 50.515586,-3.751820 50.515614,-3.751788 50.515640,-3.751193 50.515836,-3.751033 50.515905,-3.750948 50.515958,-3.750867 50.516022,-3.750771 50.516133,-3.750732 50.516163,-3.750530 50.516281,-3.750459 50.516344,-3.750358 50.516402,-3.750265 50.516469)))	POINT (-3.755029 50.515702)	Boundary amended 04/03/2011	2026-04-03	Invalid date
CA24	Drewsteignton	https://www.dartmoor.gov.uk/__data/assets/pdf_file/0031/168367/Drewsteignton-R6.compressed.pdf	https://www.dartmoor.gov.uk/living-and-working/planning/listed-buildings-and-conservation-areas/conservation-areas	MULTIPOLYGON (((-3.788140 50.702340,-3.788179 50.702660,-3.788197 50.702753,-3.788230 50.702861,-3.788815 50.703090,-3.789405 50.703304,-3.789381 50.703338,-3.789427 50.703357,-3.789413 50.703373,-3.789535 50.703413,-3.789563 50.703431,-3.789571 50.703458,-3.789563 50.703479,-3.789574 50.703514,-3.789544 50.703533,-3.789299 50.703602,-3.789101 50.703644,-3.789047 50.703644,-3.788889 50.703677,-3.788943 50.703769,-3.788982 50.703762,-3.788987 50.703773,-3.789070 50.703760,-3.789064 50.703747,-3.789271 50.703715,-3.789347 50.704112,-3.789372 50.704192,-3.789759 50.704121,-3.790148 50.703968,-3.790224 50.704028,-3.790349 50.704097,-3.790380 50.704196,-3.790376 50.704267,-3.790418 50.704328,-3.790478 50.704386,-3.790519 50.704403,-3.790634 50.704414,-3.791327 50.704419,-3.791384 50.704426,-3.791438 50.704447,-3.791399 50.704465,-3.791332 50.704530,-3.791257 50.704672,-3.791278 50.704709,-3.791336 50.704733,-3.791431 50.704725,-3.791483 50.704693,-3.791703 50.704654,-3.791941 50.704631,-3.791923 50.704592,-3.791915 50.704462,-3.792480 50.704348,-3.793175 50.704248,-3.793313 50.704161,-3.793338 50.704162,-3.793717 50.704089,-3.793625 50.703794,-3.793518 50.703576,-3.793475 50.703468,-3.793415 50.703373,-3.793444 50.703215,-3.793423 50.703045,-3.793490 50.703047,-3.793400 50.702884,-3.793187 50.702413,-3.793046 50.702135,-3.792976 50.702027,-3.792600 50.701662,-3.792577 50.701660,-3.791843 50.701770,-3.791418 50.701815,-3.791028 50.701882,-3.790488 50.702024,-3.790055 50.702082,-3.789834 50.702124,-3.788734 50.702267,-3.788277 50.702291,-3.788141 50.702326,-3.788140 50.702340)))	POINT (-3.791214 50.703115)	Boundary amended 02/03/2012	2026-04-03	Invalid 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 Dartmoor National Park Authority’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