POLYGON ((-0.172251077421954 51.46569313250682, -0.172794931446486 51.46553374881378, -0.172655454644692 51.46586653989164, -0.172418936858502 51.46589772360848, -0.172209277462234 51.46573804681906, -0.172251077421954 51.46569313250682))