Growing concerns about Brexit and political uncertainty mean the property market is "pretty much flatlining", according to surveyors.
The problem is starkest when it comes to top-end homes, the Royal Institution of Chartered Surveyors' (Rics) report for July said.
When asked, more than two property professionals in three (69%) said million pound homes were moving for less than their asking prices.
That's worse than June's figure (66%) and a lot worse than homes priced under £500,000 (59%).
Rics chief economist Simon Rubinsohn said the research would provide "little comfort for the market with all the key indicators pretty much flatlining".
And things don't look like they'll get better anytime soon, either.
"The forward-looking metrics on prices and sales also seem to losing momentum as concerns, clearly voiced in the anecdotal feedback, both about Brexit and political uncertainty heighten," he added.
There were also different price trends across the UK, with prices increasing at a "solid pace" in Northern Ireland, Scotland and Wales, Rics said.
By contrast, prices continued to fall in London, the South East and East Anglia.
Overall across the survey, a net balance of 9% of surveyors reported house prices falling rather than increasing.
Surveyors' expectations for house sales in the next few months were flat, with sentiment around prices also deteriorating, Rics said.
The report also suggests that rents will be squeezed upwards in the coming months.
Demand for rental homes from tenants picked up in July to the strongest levels seen since late 2016, Rics said.
But, at the same time, the supply of rental homes has been dwindling, with the volume of new properties being listed for rent by landlords decreasing, continuing a long-running trend.
