{"entry-date":"2026-09-30","start-date":"1970-02-05","end-date":"","entity":31680220,"name":"78, MOUNT STREET W1","dataset":"listed-building","typology":"geography","reference":"1223621","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.152903 51.509184)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1223621","listed-building-grade":"II"}