Frequently asked questions

An ADU is an attached or detached residential unit on the same lot as a primary residence, providing complete living facilities, including sleeping, cooking, and sanitation.

Programs like the CalHFA ADU Grant may provide funding for predevelopment costs.

A JADU is a smaller unit (up to 500 sq. ft.) entirely within a single-family residence. It may share sanitation facilities with the main house.

ADUs provide affordable housing options, allow families to stay close, and contribute to addressing California's housing crisis.

Yes, ADUs require permits, which must be approved ministerially within 60 days of a complete application.

No, unless the violation poses a public health or safety threat.

ADUs are permitted in zones allowing residential use, subject to water, sewer, traffic, and safety considerations.

ADUs must be at least 850 sq. ft. (1,000 sq. ft. for units with more than one bedroom). Converted ADUs are not subject to size limits.

Yes, detached ADUs can be up to 16-18 feet tall, with some exceptions allowing up to 25 feet.

Parking is generally not required for ADUs near public transit or in certain other conditions.