{"geometry":{"type":"Point","coordinates":[-0.152746,51.509505]},"type":"Feature","properties":{"entry-date":"2026-10-01","start-date":"1987-12-01","end-date":"","entity":31680217,"name":"45-52, MOUNT STREET W1","dataset":"listed-building","typology":"geography","reference":"1223618","prefix":"listed-building","organisation-entity":16,"quality":"authoritative","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1223618","listed-building-grade":"II"}}