{"entry-date":"2026-09-26","start-date":"1987-12-01","end-date":"","entity":31667574,"name":"9 AND 11, DUKE STREET W1","dataset":"listed-building","typology":"geography","reference":"1210901","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.152076 51.516077)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1210901","listed-building-grade":"II"}