{"entry-date":"2026-08-12","start-date":"1987-12-01","end-date":"","entity":31524250,"name":"45, HAY'S MEWS W1","dataset":"listed-building","typology":"geography","reference":"1066645","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.146841 51.509043)","quality":"some","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1066645","listed-building-grade":"II"}