When it comes to building an Accessory Dwelling Unit (ADU) in California, one of the most important factors to consider is the size of the unit. The size of an ADU can vary depending on the specific zoning regulations in place and the local jurisdiction.
Typically, local zoning regulations set the maximum size of an ADU, which can range from 200 to 1,200 square feet. Some jurisdictions may also have minimum size requirements for ADUs, while others may restrict the size of ADUs based on the zoning district the property is located in.
In addition to local zoning regulations, California state laws SB 13 and AB 68 regulate the size of ADUs. These laws set a maximum size of 1,200 square feet, or 50% of the living area of the primary residence, whichever is smaller. These laws aim to minimize the impact of ADUs on surrounding properties and neighborhoods.
Aside from zoning regulations and state laws, other factors like fire safety codes, building codes, and parking requirements may also affect the size of ADUs.
Before building an ADU, it's essential to consult with your local jurisdiction to determine the specific size requirements and regulations that apply to your area. This can help ensure that your ADU meets all the necessary regulations and requirements to obtain a permit.
