Editor's note: This brief was summarised by The Property AI Newsroom from a report by Property118. Read the original article for full details.

UK Rent Growth Hits Nine-Month High as Average Rent Reaches £1,400

Average private rent growth in the UK has climbed to its highest level since December 2025, according to the Office for National Statistics (ONS). The average UK monthly rent reached £1,400 in August, with the annual increase edging up to 3.8% from 3.7% in July.

What the ONS data shows

The latest ONS figures show rent growth accelerating modestly, with the annual rate of increase rising by 0.1 percentage points between July and August. London is reported to be driving the overall upward trend in UK rental growth.

In England, the average monthly rent reached £1,459, according to the data reported by Property118.

What this means for letting agents and inventory clerks

For letting agents, the continued rise in average rents, now at a nine-month high, makes accurate, up-to-date rental valuations more important when marketing properties and advising landlords on renewals. With annual rent growth ticking upwards rather than easing, agents may see continued landlord interest in reviewing rent levels at tenancy renewal stages.

For inventory clerks, a market where rents are rising can coincide with increased tenant movement as renters weigh up their options. Thorough check-in and check-out reports, along with detailed mid-term inspections, remain essential in documenting property condition and helping to avoid deposit disputes at the end of tenancies.

A modest but notable shift

The increase from 3.7% to 3.8% is small in percentage terms, but rent growth has now reached its highest level since December 2025. The ONS figures suggest that rental growth, rather than cooling, has continued to edge higher into the late summer period.

Letting agents and inventory professionals should keep an eye on future ONS releases to see whether this nine-month high marks the start of a sustained upward trend or a temporary peak. The Property AI will continue to monitor the data as further monthly figures are published.