Private rents in the UK grew 4% in the 12 months to November, says the Office for National Statistics (ONS).
Excluding London, prices rose even higher – by 4.4%.
The overall 4% figure is the biggest change across a year since 2016, which is when the ONS began this data series, it reports.
Prices in England went up by 3.9% over the year, by 3.1% in Wales, and by 4.4% in Scotland.