Landlords have reacted to Government moves to control rents by pushing through increase before the new measures came into effect.
This was confirmed by figures showing rents experienced their strongest rise since the bust in the three months to September.
Economists had warned that introducing a rent freeze would prompt landlords to pre-load rises ahead of the new Government measures due to come into operation.
New figures show that renters are having to pay out €82 more per month than a year ago.
The latest Daft.ie survey shows rents nationwide jumped an average of 3.2% in the July to September period. This was the largest three-month increase since early 2007, according to the property website. The national average rent between July and September was €964, compared to €882 the previous year. While the average rent in Dublin is now €1409.