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Los Angeles Guide

LA ADU permit process: a practical step-by-step sequence.

Most ADU delays come from correction loops, not one big blocker. Use this sequence to stage scope, paperwork, and status follow-up without losing weeks.

Last updated: 2026-02-18

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Process stages

  • Feasibility and scope boundary: ADU-only scope first.
  • Pre-submittal check: objective standards, utilities, and notes.
  • Plan check and correction rounds with date-stamped response log.
  • Permit issuance and inspection sequencing.
  • Final approvals and close-out documentation.

Execution notes that reduce corrections

  • Track every reviewer request by sheet and response date.
  • Keep a separate internal list for utility and inspection dependencies.
  • Avoid adding unrelated scope late in plan check unless necessary.
  • When status stalls, use precise follow-up with permit number and last action date.

FAQ

What should happen before I submit plans to LADBS?

Confirm zoning feasibility, objective standards, utility assumptions, and ADU scope boundaries before final drawings.

How many correction rounds are normal for LA ADU permits?

One to three rounds are common. Fewer rounds depend on complete notes and city-specific sheet expectations.

Can I overlap plan check tasks with contractor bidding?

Yes. Most teams bid during plan check, then lock final pricing after correction comments are resolved.

What delays issuance most often?

Missing details in structural notes, utility scope conflicts, and unresolved correction comments near approval.

Should I track permit status manually?

Manual checks work, but a weekly status log with date-stamped notes prevents missed actions during review.

When should I order a permit dossier?

Order it when an address has prior permit history, open finals, or unclear scope that could affect your filing strategy.