ADUs can be developed on properties where a primary residential structure exists and can be used like any other home for living, sleeping, cooking, and sanitation. ADUs are also commonly referred to as a granny flat or in-law unit. The City of Sacramento allows up to two ADUs per lot.
ADUs can share walls with each other and/or the primary residence (attached) or be stand alone structures (detached) from each other and the primary residence. They must also comply with all of the dwelling unit provisions mandated by the California Code of Regulations, Title 24, also known as the California Building Standards Code.
Newly constructed detached or stand-alone ADUs
Newly constructed that are attached or an extension to a primary structure
Taking unused space, like a basement or an attic, and turning it into an ADU
Taking an existing garage and turning it into an ADU
Building an ADU above an existing garage
Modular ADUs are built partially or entirely off site and delivered to the property
A Junior ADU (JADU) is a type of ADU that cannot exceed 500 square feet in size and must be contained entirely within a single-unit residence. JADUs are allowed to share bathroom facilities with the conjoined residence, but must have its own efficiency kitchen and separate entrance. JADUs are also required to record a deed restriction on the property.
To learn more about JADUs and how they differ from traditional ADUs, review State Government Code 65852.22.
All residential structures in the City of Sacramento must be placed on a permanent foundation. Homes on wheels are currently not permitted.