House prices have again lifted in Sydney and Melbourne but have eased in Brisbane, Adelaide and Perth, according to the latest data from property information group CoreLogic.

Sydney's home values rose slightly more than Melbourne's in the week to June 25, up 1 per cent compared to its southern rival's 0.8 per cent, but Brisbane's prices dipped by 0.3 per cent, Adelaide's by one per cent, and Perth's by 0.2 per cent.

The national auction clearance rate among the combined capital cities remains below 70 per cent, with preliminary results showing 69.1 per cent of auctions cleared, compared to 66.7 per cent in the previous week.

AAP