How to build an ADU in California?

Building an ADU in California involves five key phases: research, feasibility study, design and planning, permitting, and construction. Start by determining your budget and understanding local regulations. Conduct a feasibility study to assess property suitability and utility connections. Design your ADU, considering options like detached units, garage conversions, or room additions. Obtain necessary permits by preparing required documents and adjusting plans based on feedback. Finally, proceed with construction, including site preparation, foundation laying, framing, and interior finishing, ensuring all work meets safety standards and building codes.