{"entry-date":"2026-10-01","start-date":"1987-12-01","end-date":"","entity":31680217,"name":"45-52, MOUNT STREET W1","dataset":"listed-building","typology":"geography","reference":"1223618","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.152746 51.509505)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1223618","listed-building-grade":"II"}