The final inspection is the last sign-off required before an ADU can be legally occupied. In the City of Los Angeles, 34.7% of first attempts do not pass, across 79,761 final inspections in LADBS records over the trailing 12 months.
34.7%
of ADU Final Inspection inspections fail on the first attempt in City of Los Angeles
Based on 79,761 first-attempt inspections, Trailing 12 months (2025-07-01 → 2026-07-01).
A first attempt counts as a failure when it drew a correction notice or the work was not ready when the inspector arrived.
Source: LADBS (9w5z-rg2h).
The final inspection is where every earlier stage gets re-checked as a whole. Because it depends on all the trades having closed out cleanly, it carries one of the higher first-time failure rates in the ADU sequence. A failed final rarely means a serious defect — more often it is a handful of small, overlooked items that block occupancy until they are corrected.
Why Final Inspection inspections fail
Unfinished punch-list items
Missing cover plates, unlabeled electrical panels, incomplete handrails, or grading not finished to plan are the classic reasons a final gets a correction notice.
Earlier corrections never signed off
If an earlier inspection issued corrections that were fixed but never formally re-inspected, the final can be held until that paperwork is closed.
Address, egress, and life-safety details
Missing or non-illuminated address numbers, egress window sizing, and emergency escape requirements are frequently caught only at final.
Site work and drainage
Final grade, drainage away from the structure, and path-of-travel requirements are often left to the end and not ready on inspection day.
How to pass on the first attempt
Walk the unit with your contractor against the approved plans the day before.
Confirm every prior inspection has a recorded approval — no open corrections.
Verify the electrical panel is labeled and all cover plates are installed.
Confirm final grade and drainage match the approved plan.
Have the approved plan set and permit card on site for the inspector.
What the inspector checks
At the final, the LADBS inspector confirms the ADU was built to the approved plans and code, that every prior inspection has been signed off, and that all life-safety and habitability requirements are met. Only after the final is approved can the unit be legally occupied.
What a failure costs you
A failed final means a correction notice, the fixes, and a re-inspection — typically days to a couple of weeks of delay depending on the LADBS queue and how quickly the items are addressed. Because occupancy is blocked until the final passes, this delay lands at the most expensive moment: when the project is otherwise finished.
Frequently asked questions
The inspector issues a correction notice listing what must be fixed. You address each item and schedule a re-inspection. The unit cannot be legally occupied until the final is approved.
It depends on the LADBS inspection queue and the district. Simple corrections can be re-inspected within a few business days; busier periods run longer.
Yes. Across the City of Los Angeles, a meaningful share of ADU finals fail on the first attempt — usually for small punch-list items rather than serious defects. See the current rate in the callout above.
No. Occupancy without a passed final (and, where applicable, a certificate of occupancy) is a code violation and can create insurance and liability problems.
From LADBS public inspection records for the City of Los Angeles, recomputed weekly over a rolling 12-month window. It counts each permit’s first attempt only.
Source & methodology
ADUscale Research
This figure is a first-time pass rate — the share of permits whose first
attempt at this inspection type passed — computed directly from LADBS public inspection
records (9w5z-rg2h)
for the City of Los Angeles, over a rolling trailing 12 months, refreshed weekly. We only
count each permit's first attempt, so it shows how often work passes the first time.
A first attempt is a fail if it drew a correction or the work was not ready when the
inspector arrived. Data source and methodology:
LA ADU Inspection Index ·
InspectPilot.
Last updated: July 1, 2026 · Geography: City of Los Angeles
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