{"entry-date":"2026-10-23","start-date":"1954-09-10","end-date":"","entity":31683602,"name":"26-30, PORTLAND PLACE W1","dataset":"listed-building","typology":"geography","reference":"1227024","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-0.144271 51.519443)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1227024","listed-building-grade":"II*"}