FX.co ★ UK House Prices Slip in September as Nationwide HPI Turns Negative

UK house prices edged lower in September 2026, with the Nationwide House Price Index (HPI) posting a month-on-month decline of 0.2%, according to data updated on 1 October 2026. This marks a reversal from August 2026, when prices registered a modest 0.2% month-on-month increase.

The shift into negative territory on a month-over-month basis suggests a loss of momentum in the housing market as autumn begins. The comparison indicates that while August saw incremental price growth compared to July, September’s reading shows prices slipping back, underscoring a more cautious backdrop for buyers and sellers heading into the final quarter of the year.

With the “Actual” figure now reflecting a 0.2% decline versus the prior month, and the “Previous” figure capturing August’s 0.2% rise over July, the data highlight how quickly sentiment and conditions can change in the UK property market on a short-term basis.