{"geometry":{"type":"Point","coordinates":[-0.146552,51.517516]},"type":"Feature","properties":{"entry-date":"2026-08-12","start-date":"1954-09-10","end-date":"","entity":31524274,"name":"21, HARLEY STREET W1","dataset":"listed-building","typology":"geography","reference":"1066669","prefix":"listed-building","organisation-entity":16,"quality":"some","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1066669","listed-building-grade":"II"}}