ADU FAQ: California Homeowners' Top Questions Answered (2026)
23 questions California homeowners ask about backyard ADUs, each answered in a few sentences and checked against state law, with links to our full guides.
How Much Does an ADU Cost in California in 2026?
A finished backyard ADU from Bay Modular costs $124,900 to $271,900 in 2026, all in. Here's what the price includes and which fees California law took off the table.