Garage conversion ADUs in LA typically take 4–9 months  from planning to finish. Permits, slab plumbing, and Title 24 compliance drive the schedule. Why this matters in January January submissions in Studio City, Pasadena, and Anaheim often clear plan check faster than spring filings. Why garage conversions are popular Garage ADUs reuse existing structures. Benefits include: Lower cost than ground‑up ADUs Faster approvals Minimal grading They are common in Sherman Oaks, Missi