Sydney's housing market is continuing to slow, with the monthly growth in the price of a home down 1 per cent, latest auction figures show.

The Harbour City's home prices were flat in the week to July 23, but over the month the growth in prices slowed from 3.1 per cent to 2.1 per cent, according to data from property analytics firm CoreLogic.

Home prices in Melbourne held steady in the week after climbing for three consecutive weeks, while Adelaide prices were up 0.5 per cent, but both Brisbane and Perth's home values fell, by 0.6 per cent and 0.2 per cent, respectively.

Melbourne's monthly growth also slipped, to 4.2 per cent from 5.0 per cent the previous week.