{"geometry":{"type":"Point","coordinates":[0.5263,51.274567]},"type":"Feature","properties":{"entry-date":"2026-08-08","start-date":"1974-08-02","end-date":"","entity":31543744,"name":"61, Marsham Street","dataset":"listed-building","typology":"geography","reference":"1086304","prefix":"listed-building","organisation-entity":16,"quality":"some","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1086304","listed-building-grade":"II"}}