Last month saw a 12% drop in the number of properties sold at auction, with revenue falling by 15% compared with June 2015.
The latest Essential Information Group figures show that £277.1m was raised in June, down from £326.9m last June.
The number of lots offered was down by 10% to 2,662, and the average success rate was 73.7%, down from 75.9% a year ago.
EIG managing director David Sandeman attributed the decline to the “period of uncertainty” caused by the referendum and political upheaval.
He added: “However, these numbers are still high when compared with the years of recovery that followed the property crash in 2008-09.
“History also shows us that the auction market is usually quick to respond, and I expect confidence to return before long. A glance at July’s catalogues will show a busy period ahead.”
Strettons director Philip Waterfield said the auction house’s latest sale had been affected by the uncertain economic and political climate.
He said: “Although the catalogue, which came out before the Brexit vote, was smaller than usual, the room was busy.
“However, there was limited interest in the less traditional lots, which a month or so ago would have grabbed buyers’ attention.”
Strettons’ 11 July sale raised £6.8m, with a 59% success rate from 34 lots offered.
The highest price of the day was for a property in London, E3, with planning for six flats and a shop, which sold for £1.31m off a £950,000 guide.
A derelict manor house sitting on 13 acres near Coventry was guided at £150,000 but sold for £450,000.
The sale was held at the Grand Connaught Rooms, WC2.
