San Fernando Valley · Timeline
How long an ADU really takes in San Fernando Valley
Total elapsed schedule from the first site walk to the final inspection. Plan check is rarely the long pole — utility coordination and trade scheduling usually are.
Stage by stage
- Survey + design
- 2–4 — Standard R1 lots only need a basic ALTA.
- LADBS plan check
- 4–6 — Online portal, ministerial.
- Permit + utility coordination
- 1–2 — LADWP service drop scheduling.
- Construction
- 14–20 — Detached new-build on flat lot.
Permit clock vs total schedule
- Ministerial permit
- 6–10 weeks
- Discretionary review (when triggered)
- 14–20 weeks
What slips schedules in this area
- Mostly flat R1 — ideal for detached new-build ADUs up to 1,200 sqft.
- Mulholland Scenic Parkway parcels add a Specific Plan review along the ridgeline.
- Very High Fire Hazard Severity Zone (VHFHSZ) on the south side → Chapter 7A exterior assemblies.