New seller asking prices edged upwards in September 2025, but the annual comparison remained slightly negative. Rightmove’s index put the average price of property coming to market at £370,257, up 0.4%, or £1,517, from August and down 0.1% from a year earlier.
The monthly increase was the first since May. It was also smaller than the portal’s stated long-term September average of 0.6%, suggesting a restrained seasonal recovery rather than a sharp change in direction.
These were asking prices at the start of the selling process. They were not completed transaction prices or a valuation of every home in Britain. The September release used 104,921 asking prices for properties advertised between 10 August and 6 September 2025.
Regional differences were substantial. Rightmove reported an annual fall of 1.3% in the South West, while the North West recorded a 3.2% increase. The national average therefore combined markets moving at different speeds and in different directions.
Supply was also uneven. The number of homes for sale in the south of England was 9% higher than a year earlier, compared with a 2% increase elsewhere. More choice gave buyers additional alternatives and made realistic seller expectations particularly important in those markets.
Activity nevertheless held up. Across Great Britain, the number of sales agreed was 4% ahead of the comparable period a year earlier. An agreed sale is a useful sign of demand, although it is not the same as a completed purchase.
Taken together, the figures described a market in which transactions could increase without strong price growth. They also showed why a single national headline could conceal important local differences.
For readers revisiting this archive report, the date is essential: these figures describe September 2025. They are a historical market snapshot, not current asking prices, a forecast of future returns or a guide to the value of an individual property.