Bloomberg have it earlier than the 0000GMT scheduled release time (h/t to you-know-who-are for bringing it to my attention)

RPData and Rismark release house price index in Sydney. All data compared with month prior.
* Capital City Aggregate 644.9 (+1.6% M/m) Avg. Price A$530,000

NOTE: Average price is the three month rolling dwelling price provided by RPData and Rismark.