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Accessory Dwelling Units (ADUs)

The State of California passed laws that make building an ADU fairly simple. Where allowed, homeowners can decide to build either a detached ADU on their property, an attached ADU that is part of a home addition, or an ADU conversion which converts part of your existing property into an ADU (including the conversion of an existing garage into an ADU).

The first step when deciding to build an ADU is to determine what type of ADU best fits your needs, and the physical characteristics of your property. Are you building an ADU as extended family housing or as a rental? We can help you determine the size and type of ADU you need.


  • ADUs are an affordable type of home to construct in California because they do not require paying for land or major new infrastructure.

  • ADUs can provide a source of income for homeowners. An ADU has its own kitchen, living area, and a separate entrance. An ADU may be attached to a house or garage, or it can also be built as a stand-alone unit.

  • ADUs are built with cost-effective wood frame construction. ADUs allow extended families to be near one another while maintaining privacy.

  • ADUs can provide as much living space as many newly-built apartments and condominiums, and they are suited well for couples, small families, friends, young people, and seniors.

  • ADUs give homeowners the flexibility to share independent living areas with family members and others, allowing seniors to age in place as they require more care.

ADUs in Southern California are becoming increasingly more popular as the space for new construction continues to dwindle.