London has retained its position as the most expensive European city to stay in, as rates rise across majority of destinations worldwide.
Data from HRS for Q3 2015 shows that London is now an average £140 a night, with Edinburgh keeping its position as the second most expensive destination in the UK at £116 a night.
Bristol is the third most expensive city to stay in the UK following a 17 per cent increase compared with the same quarter in 2014, with an average room costing £96 a night.
Across Europe Milan saw the largest increase with a 19.6 per cent rise in rates compared to the same period in 2014, followed by London and Zurich.
In the US New York now shares the number one spot for most expensive rates with Boston, which saw an increase of 35 per cent.
In Asia, Tokyo saw a 35 per cent rise, but on the whole Asia remains keenly priced, with Kuala Lumpur costing just £50 per night.
HRS managing director Jon West said: “In Q3 2014, the outlook for average room rates saw just a two per cent rise across the 21 destinations.
“However, this year, the picture is certainly changing with an average increase of 9 per cent for the same quarter. The UK meanwhile has seen an average increase of 16 per cent across the nine major cities,” he added.