POLYGON ((-0.143240411128558 51.5142921054827, -0.14329401166757 51.51423841537006, -0.143041752088467 51.51413439973882, -0.142968294502349 51.51415180611389, -0.143052628436953 51.51430374144967, -0.143240411128558 51.5142921054827))