It's hoped that thousands of properties across the capital will be brought back into the long-term rental market next month.
Dublin City Council has requested 13 new staff to enforce restrictions on Air BnB lets.
New rules and fines were introduced in July.
However, to date, they haven't achieved their aim of returning housing stock to the residential market.
Sinn Fein's Housing spokesperson Eoin O'Broin says most of these short term lets are actually commercial businesses.
He said "There're about 7,5000 short-term lets available on any given night in Dublin city -and that's not including Fingal, Dun Laoghaire and South Dublin.
"The vast majority of those are stand-alone, commerical properties. These are businesses and they are businesses that are breaking the law."
Host's Profits
Air BnB says Dublin hosts made €168 million last year while 1.8 million visitors used the site.
The company says the site generated €700 million for the local economy.
Dublin City Council estimates that Air BnB removed some 2,000 housing units from the residential market last year.
According to today's Sunday Business Post, the local authority believes it will cost €1.8 million to operate a new taskforce to clampdown on illegal Air BnBs.
