Rents for private homes across the country rose by 1.6% in the year to the end of September 2017 – the same as the previous month.
The average for England was 1.6%, but was slightly less in Wales at 1.4%, while Scotland saw a small increase of 0.3%.
Rents in London were up 0.9%, a slowdown from the 1.2% posted in August.
The figures were released by the Office of National Statistics as the latest instalment of the Index of Private Housing Rental Prices for the year to September 30.
The index is an experimental statistical base that started in January 2011 in response to criticism that the government had no independent way to monitor private rents.
Since then, rents in the UK have risen by 15.2%, while excluding London, the index returns an increase of 11.3% over the same period.
“Growth in private rental prices paid by tenants across Britain has seen signs of a slowdown since the end of 2015, increasing by 1.6% in the 12 months to September 2017,” says the report.
“A property that was rented for £500 per month in September 2016, which saw its rent increase by the average rate would be rented for £508 in September 2017. This slowdown in the growth in private rental prices is driven mainly by a slowdown in London over the same period.”
Looking at buy to let rents in the regions, the largest annual increase was 2.9% in the East Midlands.
The North East posted the lowest increase of 0.4%.
Excluding Scotland, Wales and London, rent increases were highest in the south and east and lower in the north.
Poor growth in Scotland is probably due to a trend of too much supply and weaker demand, says the report.
The next index is expected on November 14.