Students' rents have not fallen despite the pandemic and the increased level of remote learning.
A new Daft.ie report into third level accommodation shows the average cost of a shared room in Dublin is €680, up 0.3% on the same time last year.
In other parts of the country room rents are €462, up 2.8% on average.
Nationally, rents for full properties rose by 1.2% in the year to July but were largely unchanged in Dublin city, rising by just 0.2%.
The Daft.ie Student Housing Report found there is also a need for about 50,000 purpose built apartments for students.
It says that could exceed 64,000 over 10 years because a large increase in the college-going age cohort, as well as further increases in enrolment rates and international student numbers.
Commenting on the report, Ronan Lyons, its author and economist at Trinity College Dublin, said;
"For students preparing for the 2020/21 academic year, there is little evidence of any Covid-19 effect on rents. Indeed, in most market segments of interest to students, rents may if anything be slightly higher than last year."
The third level institutions that have the five highest rental costs nearby are all based in Dublin.
Trinity College: €2,756
UCD: €2,737
IADT: 2,557
TUD: €2,479
DCU: € 2210*
*average rents for three-bed properties within 2km of third level institutions
