{"geometry":{"type":"Point","coordinates":[-0.06832,51.514727]},"type":"Feature","properties":{"entry-date":"2026-08-01","start-date":"1973-09-27","end-date":"","entity":31696483,"name":"GUNMAKERS COMPANY HALL AND PROOF HOUSE","dataset":"listed-building","typology":"geography","reference":"1239992","prefix":"listed-building","organisation-entity":16,"quality":"some","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1239992","listed-building-grade":"II"}}