{"entry-date":"2026-10-23","start-date":"1954-09-10","end-date":"","entity":31812812,"name":"10, DUCHESS STREET W1","dataset":"listed-building","typology":"geography","reference":"1357013","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.145291 51.518903)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1357013","listed-building-grade":"II"}