In every region of the UK, the pace of rent rises slowed and in some regions retracted over the three months to August 2015 compared to the previous three-month period.
The trend is particularly marked in areas where rents have been rising exceptionally quickly this year, notably the South East of England and East Anglia.
Nevertheless, on an annual basis, rent prices remain significantly higher than a year ago, with the average UK rent 10.5% higher than in the three months to August 2014.
Overall, the average UK rent on new tenancies has increased 1.6% in the three months to August 2015, compared to an increase of 2.2% for the three months to July and June 2015.
In the three months to August 2015, with the exception of Wales where rents rose by 2.5%, no region saw rents increase by more than 2%.
Three regions - the South East, North West and North East of England - saw rents fall during this period; the biggest fall was in the North East where rents paid for new tenancies in the three months to August 2015 were, on average, 2.1% lower than in the three months to July.
Martin Totty, Barbon Insurance Group’s chief executive officer, said: “Rents continue to run slightly ahead of house prices, with the majority of the UK still experiencing rising rents, albeit at a much slower pace than we saw in the early part of 2015.
“On an annualised basis, however, rents in most regions are still significantly higher than the same period a year ago, with only the North West reporting lower rents for new tenancies in the three months to August 2015 than for the same period last year.”