ADU added on a property/main house built before 1978 may be subj

4- Building an ADU on a property constructed prior to 1978 will make the ADU subject to rent control laws because once an ADU is built; a residence is no longer classified as a single-family home.

5- ADUs can be listed on Airbnb –in some cities. ADU Los Angeles structures, for example, are banned from such lists due to the city government’s need for longer rental periods.