{"entry-date":"1981-10-08","start-date":"1953-07-14","end-date":"","entity":31549394,"name":"12 AND 13, PORTLAND STREET (See details for further address information)","dataset":"listed-building","typology":"geography","reference":"1091994","prefix":"listed-building","organisation-entity":16,"geometry":"","point":"POINT (-1.4055 50.904667)","quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1091994","listed-building-grade":"II"}