6) Step 4: Permitting and approvals: what to expect in San Diego

Permitting can feel intimidating, but it is a normal part of building a safe, legal dwelling. The requirements depend on your jurisdiction and project scope. A contractor who is experienced with local permitting can handle the process and coordinate inspections so you are not managing paperwork alone.

Because ADUs involve multiple systems (foundation, framing, electrical, plumbing, mechanical), planning and documentation matter. The best strategy is to design with code and approvals in mind from day one so you do not waste time redesigning later.