An ADU (Accessory Dwelling Unit) is a legally permitted secondary unit on your property, often a converted lower level, garage, or detached cottage. In San Francisco, a properly permitted ADU increases appraised value, creates real rental income, attracts a wider buyer pool, and can help offset carrying costs in a high-price market. Not every ADU adds value equally. I help clients understand which types perform best in their specific neighborhood and what buyers actually pay a premium for.
