House prices suffer biggest August slump in eight years
Rightmove said UK house prices fell 2% in August to £364,999, the biggest August drop since 2018, and were down 1% year on year, the largest annual fall since Dec 2023. London prices fell 3.1% and the south 1.8%. Rightmove cut its growth forecast to 0% to -2% amid Budget tax fears and higher mortgage rates.
How this was made

The 30-second read
Why it matters
The newest concrete datapoint is a 2% month-on-month August drop to £364,999 and a revised forecast of national growth between 0% and -2%, implying continued downside risk to UK housing affordability and demand into October.
Market read
Traders should treat this as a UK housing-demand and affordability risk update tied to October Budget expectations, not a single-company catalyst.
What to watch
The piece is based on Rightmove and commentary from advisers; it does not quantify transaction volumes or forward mortgage-rate pricing, so price moves may not fully translate into realized sales or credit losses.
Background
Rightmove reports the biggest August house-price fall since 2018, attributing weakness to mortgage-rate pressure and fears of Budget tax rises.
Market effects
UK housing demand is pressured by higher mortgage rates and uncertainty over property tax reforms, likely weighing on UK residential property sentiment.
London is highlighted as the most affected region, with affordability and stamp duty cited as key drags.
Limited direct global spillover, but UK rate and housing risk can influence UK financials and broader European risk sentiment.
Counterpoint
The article cites a recent “mini Burnham bounce” and higher housing supply in London, which could stabilize prices if mortgage rates fall sooner than expected.
Key entities
- property portalRightmove
Provides the house-price data and cuts its forecast for national house-price growth.
- property advisersKnight Frank
Quotes on how mortgage-rate and Budget uncertainty are curbing demand.
- political figureUK Prime Minister (Burnham)
Referenced in relation to prior support for land-value tax and subsequent ruling out of reform.


