Faced with thousands of illegal short-term rentals that drew complaints from neighbors and limited housing options for residents, the Honolulu City Council decided in 2019 to target not only the operators of those rentals, but the websites that brought them customers.

Under the city’s law, Airbnb and other short-term rental platforms, as well as operators of rental units, are required to register with the city. Booking platforms must tell the city which properties have been rented, allowing the city to check if those units are legal. Companies can be fined up to $10,000 a day, per unit, if they receive a fee to book an unregistered short-term rental.

But in the four and a half years since the law took effect, Honolulu’s Department of Planning and Permitting has never cited Airbnb, Vrbo or any other rental platform for doing business with illegal rentals, city officials told Civil Beat.

Meanwhile, the number of illegal rentals dwarfs legal ones. Inside Airbnb, an organization that works to combat the negative effects of short-term rentals, says the site has about 7,900 listings on Oʻahu. The city says there are just 2,100 legal short-term rentals here.