08/21/2026
Thinking about legalizing an unpermitted ADU in Los Angeles? The process typically starts with applying for an as-built permit through the Department of Building and Safety, with plans from a licensed professional, inspection scheduling, and any required code updates. New rules, including Assembly Bill 2533, can offer a faster path with fewer fines and a permit review capped at 60 days. The window to act is wider than it’s been in years—start planning with LADU.
Learn how to legalize an unpermitted ADU in Los Angeles and how LADU handles the process for you with clear steps, timelines, and full support.