The cost of retning in the first three months of the year was almost 12% higher than they were in the same period last year, according to the latest report from property website daft.ie.
The rise in costs comes as the number of rental properties on the market has dropped to the lowest number ever recorded by Daft, with just 851 properties listed nationwide.
The number of available rental properties has dropped steadily since early 2021 when there were 3,600 rental properties available.
The average market rent between January and March stood at €1,567 per month, the report finds, which was up almost 3% on the last three months of 2021.
Market rents are now more than double the low of €765 per month seen in late 2011.
The average rent in Dublin is now €2,202 a month, up 10.6% when compared to the same period in 2021.
Other cities have also seen a sharp increase, with Cork rents increasing by 10.2% year-on-year, Galway rents by 13.8%, Limerick rents by 15.5% and Waterford rents by 16.2%.
The highest overall increase was seen in Leitrim, where average rents jumped by 24.8%
The highest average rental costs outside of the capital are in Wicklow standing at €1,676 with Leitrim the lowest at €817.
The rental report from daft.ie is based on the rents that property owners are seeking from perspective tenants.
The report does not reflect what tenants are paying in existing tenancies.
Daft.ie included an estimate, however, of the trend in rents for sitting tenants since 2010, as compared to new tenants paying market rates.
While inflation in market rents is currently above 10%, and market rents have doubled over the past decade, 'stayer' rents are estimated to have increased by just 1.5% over the past year and by less than 40% over the past ten years.
"In Dublin, the gap in rent increases since 2017 between movers - at 28% - and stayers - at 15% - is smaller than in the rest of the country, where it's 50% versus 6%," Ronan Lyons, Trinity College Economics Professor and author of the reports for daft.ie said.
"Perhaps more worryingly, it is not only market rental levels that are increasing but also the inflation rate in market rents, which hit 11.7% in the first quarter of 2022, up from just 1.2% a year earlier and only just below the all-time high of 11.8% experienced in late 2016.
"The surge in inflation had been driven by rural areas, which recovered first from the initial shock of covid19. But in recent months, urban rents have increased strongly. Inflation in market rents for Dublin 2, for example, now stands at almost 11% year-on-year, compared to -9% a year ago and just 1% two years ago.
"But nonetheless, these substantial gaps across all markets raise awkward questions about the focus over the last few years by policymakers on protecting rents for sitting tenants.," Mr Lyons said.
In Dublin, market rents rose by 10.6% year-on-year, while in Cork and Galway cities, rents rose by 10.2% and 13.8%.
Inflation was higher in Limerick and Waterford cities, at 15.5% and 16.2% respectively, while outside the cities the average increase was 12.7%.
"As ever, in a rental market dogged by chronic and worsening shortage of homes, the only real solution is to increase the number of homes. With more pressure from certain quarters to stop new rental homes being built, policymakers must hold their nerve," Ronan Lyons concluded.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.