Compared to March, UK average asking prices have grown by 2.4 per cent from £312,625 to £320,265 in July.
Scotland saw the biggest change in price since March, with a 4.5 per cent increase to £166,322, followed by Yorkshire and Humber which saw a 4.1 per cent increase to £204,050.
London prices saw the smallest change since March, with prices rising by just 0.5 per cent to £641,854.
Miles Shipside, Rightmove director and housing market analyst, said: “The unexpected mini-boom continues to gather momentum as more nations reopen.
“The busy until interrupted spring market has now picked up where it left off and has been accelerated by both time-limited stamp duty holidays and by homeowners reappraising their homes and lifestyles because of the lockdown.”
“These figures are the earliest indicator of house price trends. They show on average prices gently rising not falling, and this will be reflected in the coming months in other house price reports,” he added.