{"geometry":{"type":"Point","coordinates":[-4.05065,50.383235]},"type":"Feature","properties":{"entry-date":"2026-08-11","start-date":"1975-05-01","end-date":"","entity":31700872,"name":"MAINSTONE HOUSE","dataset":"listed-building","typology":"geography","reference":"1244396","prefix":"listed-building","organisation-entity":16,"quality":"some","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1244396","listed-building-grade":"II"}}