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Which zoning requirements apply to ADUs in California?

In California, accessory dwelling units (ADUs) are subject to local zoning laws, which regulate the use and development of land, including the construction of ADUs. These laws can specify the size, location, design, parking requirements, and other standards.

Los Angeles zoning department reviewing ADU plans

The specific zoning requirements vary depending on the location and the project's specifics. In general, the common zoning requirements for ADUs in California include:

Lot size: ADUs may be subject to minimum lot size requirements, which can vary depending on the location. For example, some jurisdictions may require that the lot size be at least 4,000 square feet or larger to build an ADU.

Building size: ADUs are subject to maximum building size requirements, varying depending on the location. For example, some jurisdictions may limit the size of an ADU to 800 square feet or less.

Location: ADUs may be subject to location requirements, varying depending on the site. For example, some jurisdictions may require that ADUs be located in the property's rear yard or set back a certain distance from the property line.

Parking: ADUs may be subject to parking requirements, varying depending on the location. For example, some jurisdictions may require that an ADU have a designated parking space or enough on-street parking to accommodate the ADU.

Knowing these and any other applicable zoning requirements is essential before building an ADU in California. Consider consulting with a real estate professional or a legal advisor to better understand the zoning requirements that may apply to your property.

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