{"entry-date":"2026-03-13","start-date":"1975-07-03","end-date":"","entity":44015544,"name":"Denham Lock","dataset":"conservation-area","typology":"geography","reference":"CA-24","prefix":"conservation-area","organisation-entity":167,"geometry":"MULTIPOLYGON (((-0.483645 51.568432, -0.483722 51.568546, -0.483759 51.568574, -0.483788 51.568609, -0.483767 51.568664, -0.483756 51.568712, -0.483775 51.568842, -0.483803 51.568909, -0.483854 51.56898, -0.484006 51.569122, -0.484044 51.56917, -0.484476 51.56921, -0.484481 51.569172, -0.484474 51.569025, -0.484491 51.568961, -0.484553 51.568818, -0.484555 51.568736, -0.484503 51.568658, -0.484441 51.568582, -0.484309 51.56845, -0.484265 51.568392, -0.48427 51.568313, -0.48436 51.568127, -0.484391 51.568032, -0.484444 51.567824, -0.484521 51.567538, -0.484615 51.567287, -0.484694 51.567017, -0.484751 51.566843, -0.484712 51.566763, -0.484666 51.566712, -0.484525 51.566644, -0.484318 51.566583, -0.484095 51.566509, -0.483908 51.566454, -0.483836 51.566443, -0.483655 51.566456, -0.483597 51.566447, -0.483515 51.566421, -0.483386 51.566352, -0.483099 51.566165, -0.482957 51.56606, -0.482583 51.565727, -0.482821 51.565477, -0.482981 51.565264, -0.483019 51.565093, -0.483222 51.565081, -0.483221 51.565045, -0.483197 51.564954, -0.483158 51.564848, -0.483119 51.564763, -0.483065 51.564687, -0.482919 51.564567, -0.48263 51.564338, -0.482398 51.56415, -0.482339 51.564088, -0.482299 51.564022, -0.482252 51.563913, -0.482269 51.563849, -0.482317 51.563792, -0.481701 51.563777, -0.481767 51.564124, -0.481973 51.564982, -0.482011 51.565223, -0.48204 51.565359, -0.481508 51.565369, -0.481447 51.565456, -0.481888 51.565544, -0.481851 51.56562, -0.481671 51.565868, -0.481648 51.565936, -0.481606 51.566211, -0.481516 51.566732, -0.481493 51.566818, -0.481488 51.566879, -0.481479 51.566938, -0.481414 51.567469, -0.481396 51.567548, -0.48135 51.567654, -0.481278 51.568399, -0.48126 51.568654, -0.481151 51.569195, -0.481261 51.569291, -0.481297 51.569314, -0.481386 51.569335, -0.481605 51.569358, -0.481653 51.56942, -0.481804 51.56945, -0.482138 51.569445, -0.482159 51.569438, -0.482233 51.569348, -0.482269 51.569355, -0.482463 51.569089, -0.482418 51.569061, -0.482439 51.569013, -0.482408 51.568971, -0.48246 51.568901, -0.482573 51.568682, -0.482621 51.568678, -0.483334 51.568497, -0.483487 51.56846, -0.483568 51.568438, -0.483603 51.568431, -0.483645 51.568432)))","point":"POINT (-0.482728 51.567121)","quality":"authoritative","document-url":"https://www.hillingdon.gov.uk/media/3847/Denham-Lock-map/pdf/c3Denham_Lock_CA.pdf?m=1603207448277","designation-date":"1975-07-03"}