Via Deutsche:
From Q1-17, the ABS will add ‘attached dwellings’ (i.e. apartments and semis) to the measure of ‘new dwelling purchase’ in the CPI to better capture the trend towards higher-density living. We expect this to impart some modest downside pressure to headline CPI moving forward
In the Q4-16 CPI release, the ABS noted its intention to introduce a price series for attached dwellings (‘apartments’ and ‘townhouses’) in its measurement of the price for new dwelling purchases.