{"geometry":{"type":"MultiPolygon","coordinates":[[[[-0.839794,51.115152],[-0.840143,51.114867],[-0.84035,51.114966],[-0.840509,51.115055],[-0.840688,51.115233],[-0.840881,51.115417],[-0.841137,51.115372],[-0.84124,51.115426],[-0.841262,51.115393],[-0.841297,51.11536],[-0.841355,51.115332],[-0.841539,51.115233],[-0.841622,51.115215],[-0.841696,51.115218],[-0.841748,51.115238],[-0.841794,51.11525],[-0.84183,51.115189],[-0.841834,51.115118],[-0.841814,51.115085],[-0.841756,51.115037],[-0.841647,51.114972],[-0.841579,51.114928],[-0.841497,51.114886],[-0.841354,51.114843],[-0.841292,51.114819],[-0.841243,51.114775],[-0.841227,51.114744],[-0.841226,51.114713],[-0.84123,51.114652],[-0.84128,51.114592],[-0.841312,51.114565],[-0.841293,51.114498],[-0.841039,51.114411],[-0.84089,51.114365],[-0.840612,51.114258],[-0.840739,51.114164],[-0.840816,51.114115],[-0.840751,51.114085],[-0.840662,51.114056],[-0.840612,51.114027],[-0.840548,51.113986],[-0.840517,51.113954],[-0.840675,51.11387],[-0.840711,51.113845],[-0.840767,51.113792],[-0.840793,51.113745],[-0.840799,51.113716],[-0.840791,51.113634],[-0.840787,51.113612],[-0.840803,51.113555],[-0.840845,51.113489],[-0.840866,51.113442],[-0.840867,51.113411],[-0.840847,51.113391],[-0.840803,51.113375],[-0.840018,51.113225],[-0.839798,51.113214],[-0.839269,51.113182],[-0.839248,51.112857],[-0.839138,51.112822],[-0.839024,51.112812],[-0.838985,51.112792],[-0.838985,51.11294],[-0.838927,51.113117],[-0.83891,51.113183],[-0.838899,51.113236],[-0.838903,51.113293],[-0.8389,51.113388],[-0.838865,51.113403],[-0.838894,51.113435],[-0.838897,51.113508],[-0.838877,51.11371],[-0.838859,51.11382],[-0.838777,51.114094],[-0.838694,51.114394],[-0.838834,51.114439],[-0.838813,51.114455],[-0.838772,51.114492],[-0.83866,51.114548],[-0.838575,51.114563],[-0.838475,51.114549],[-0.838395,51.11453],[-0.838181,51.114471],[-0.838091,51.114435],[-0.838027,51.114378],[-0.837972,51.114367],[-0.837937,51.114392],[-0.83789,51.114446],[-0.837864,51.114499],[-0.837856,51.114594],[-0.837865,51.114663],[-0.837888,51.114711],[-0.837833,51.114739],[-0.837749,51.115063],[-0.838214,51.115024],[-0.838229,51.115122],[-0.838606,51.115195],[-0.83892,51.115241],[-0.839022,51.115252],[-0.839192,51.1149],[-0.839438,51.115003],[-0.839434,51.115007],[-0.839432,51.115013],[-0.839433,51.115019],[-0.839441,51.115028],[-0.839451,51.115032],[-0.839465,51.115033],[-0.839481,51.11503],[-0.83949,51.115025],[-0.839794,51.115152]]]]},"type":"Feature","properties":{"entry-date":"2026-07-20","start-date":"1977-04-12","end-date":"","entity":44016405,"name":"Headley Mill","dataset":"conservation-area","typology":"geography","reference":"21-1","prefix":"conservation-area","organisation-entity":122,"quality":"authoritative","document-url":"http://maps.easthants.gov.uk/Heritage/HeadleyMill.pdf","designation-date":"1977-04-12","documentation-url":"https://www.easthants.gov.uk/planning-services/heritage-and-trees/conservation-areas"}}