ADU code compliance and retrofitting is the same as for the primary dwelling unit on the property as the ADU. For Southern California ADUs, the same rules apply with respect to code compliance and retrofitting.
If there is gas connected to the ADU, a CO (carbon monoxide) detector is required for every level of the ADU.
If the ADU has its own gas meter, it is required to have an seismic earthquake shut off valve attached to that gas meter.
This link guides you to the other items required to be checked with an ADU for Los Angeles County when selling.
Call us with any questions you may have about ADUs and Realtor code compliance and retrofitting at 310-800-4418
