In the first 15 days of operation, hundreds of adverts were taken down and Airbnb users were warned they would be blocked from the platform if they posted "flagrantly" illegal properties from the website, including caravans, tents, yurts and boats.
The deal means illegal properties will be taken down "without discussion or appeal" in order to prevent costly legal delays.
According to The Olive Press, there are currently 100 open cases in Ibiza, which is expected to rise to reach over 200 with the introduction of new measures.
The agreement has been signed by Ibiza council leader, Vicent Mari, and Spanish Airbnb director, Jaime Rodriguez de Santiago, but other entities have also been involved in the discussions, including the Ibiza Tourist Accommodation Association (AVAT), the Ibiza and Formentera Hotelier Federation (FEHIF) and the Ibiza Tourism Board.
“Airbnb has chosen Ibiza to establish their fight against the intrusion of tourist flats,” Mari added. “The island is small but a big player in Spain’s tourism industry.”
Santiago, meanwhile, hopes Ibiza is the "first of many" councils to collaborate with Airbnb. "This is the start of a long relationship," he said.
In a letter to Airbnb in November, Collboni wrote: "The days of economic activity of using homes as tourist accommodation are numbered in our city."
Airbnb had written to the mayor, urging him to reconsider the prohibition of tourist apartments.