De Nada Surveys phone U4/ 14 Halley Rd Balcatta, Western Australia 6021 map Ion Services Pty Ltd phone 14/ 23 Gibberd Rd Balcatta, Western Australia 6021 map if (!IN_DEV) { ?> } ?> St Spatial Pty Ltd phone 24 Mumford Pl Balcatta, Western Australia 6021 map