The document provides a May 2015 property market update for Australia. It notes that the disparity between house and unit growth is widening, with Melbourne houses increasing 2.27% in value while units declined 0.08%. Sydney continues to lead quarterly growth at 3.18%, bringing the median house value to $929,000. Trend data shows divergence between houses and units in both Melbourne and Sydney, with units trending down to almost zero growth in Melbourne. The update cautions that continued investment in units may not be favorable, as houses have historically outperformed units and suffered less in market corrections.