{"geometry":{"type":"Point","coordinates":[-0.419,51.472039]},"type":"Feature","properties":{"entry-date":"2026-08-15","start-date":"1996-04-02","end-date":"","entity":31724861,"name":"TECHNICAL BLOCK A, HEATHROW AIRPORT","dataset":"listed-building","typology":"geography","reference":"1268530","prefix":"listed-building","organisation-entity":16,"quality":"some","documentation-url":"https://historicengland.org.uk/listing/the-list/list-entry/1268530","listed-building-grade":"II"}}