Yuliia Bortna 10/8/26 Yuliia Bortna 10/8/26

San Francisco ADU Guide (2026): Rules, Permits, Fees and Costs

Most San Francisco homeowners can add a backyard ADU up to 850-1,000 sq ft and 18 feet tall, with no parking and a 60-day review. Here's which program to use, what it costs, and how the permit works.

San Francisco ADU Guide (2026): Rules, Permits, Fees and Costs

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Here’s the whole process on one page.

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