Architectural plans and permit documents on a desk

Permitting · August 17, 2026

How Long Do Permits Take in Los Angeles? A Complete LADBS Timeline Guide (2026)

Quick Answer

Simple permits (solar, water heater, pre-approved ADUs) can be issued the same day via LADBS's Express/OTC process. Standard residential plan check takes 6–14 weeks. Commercial TI permits take 8–16 weeks. Restaurant permits with a Conditional Use Permit can take 6–12 months. Fire rebuild permits under the January 2025 emergency orders target 30 days for like-for-like submittals. The single biggest variable at every level: whether your plans pass on the first attempt.

The question every property owner, developer, and contractor asks before a Los Angeles project: "How long is this going to take?" The honest answer is: it depends — but not arbitrarily. Permit timelines in Los Angeles follow predictable patterns once you understand how LADBS (the Los Angeles Department of Building and Safety) routes applications, which divisions review which types of projects, and what causes the delays that turn a 6-week process into a 6-month one.

This guide breaks down the real LADBS process step by step, gives you specific timeline estimates for the most common project types, and explains the factors that either compress or extend those timelines. We also cover the legal ADU review deadline under California Government Code §65852.2, the post-fire emergency pathways established after the January 2025 wildfires, and how professional permit expediting — at its best — compresses timelines not by cutting corners but by preventing the avoidable delays that plague most first-time submittals.

LADBS operates under the Los Angeles Municipal Code, Chapter IX — Building Code (LAMC Division 91), and applies the California Building Standards Code (Title 24 CCR) with LA-specific local amendments. Every timeline in this guide reflects current LADBS processing as of 2026 under these standards.

The LADBS Permit Process — Step by Step

Every building permit in the City of Los Angeles follows some version of this 9-step sequence. Understanding each step — and which ones can run in parallel vs. which are sequential — is what separates a project that permits in 8 weeks from one that takes 6 months.

  • 01

    OTC vs. Plan Check Determination

    LADBS's first decision on any application: does the project qualify for Over-the-Counter (Express) processing, or does it require full plan check? OTC means same-day or near-immediate approval for simple, low-risk projects (solar, water heater replacement, pre-approved ADU Standard Plans). Full plan check means the plans are assigned to one or more reviewing divisions for technical review. The determination depends on project complexity, occupancy type, and whether any special zone overlays apply. An experienced expediter knows the current OTC eligibility thresholds and prevents the wasted time of submitting an OTC application for a project that requires full plan check — or vice versa.

  • 02

    Electronic Submittal via ePlanLA

    The City of Los Angeles processes almost all permit applications through ePlanLA, LADBS's electronic plan check portal. Applications are uploaded with the required plan set (in PDF format meeting LADBS's file size, naming, and organization requirements), completed application forms, and payment of initial filing fees. ePlanLA performs an automated intake check before assigning the application to a reviewer. Applications that fail the intake check — wrong file format, missing required sheets, or incorrect naming — are returned before a human reviewer ever sees them, adding days to weeks of delay. Formatting the digital submittal correctly is a skill that matters more than most applicants expect.

  • 03

    Assignment to Review Divisions

    Once accepted, LADBS assigns the application to the relevant reviewing divisions. Every permitted project goes through the Building & Safety division (LAMC Division 91 / CBC Title 24 structural and systems compliance). Projects with significant MEP work go to the Mechanical-Electrical-Plumbing division. Projects above certain thresholds, or involving assembly occupancy, commercial kitchens, or fire suppression, go to the LAFD (Los Angeles Fire Department) concurrently. Projects requiring a change of use, variance, or other Planning approval go to the Department of City Planning. Each division has its own review queue and its own timeline — the total permit timeline is determined by the slowest division, not the average.

  • 04

    First Plan Check (First Review)

    Each assigned reviewer reads the plans against their division's code requirements and prepares a correction list for any deficiencies. For residential projects, first review typically takes 3–6 weeks. For commercial projects, 6–12 weeks. The correction list is issued through ePlanLA and specifies every code section the plans fail to address, with a reference to the applicable provision in the LAMC (Los Angeles Municipal Code, Chapter IX — Building Code, Division 91) or California Building Standards Code (Title 24 CCR). The quality of the architect's plan set directly determines how long this correction list is.

  • 05

    Correction Response and Resubmittal

    The applicant (or expediter) responds to each correction comment with revised plan sheets and a written response letter that addresses each comment by number and explains how the revised plans resolve it. The corrected package is uploaded to ePlanLA. LADBS typically gives second-check submittals priority over first-time applications — but second check still takes 2–5 weeks for residential and 4–8 weeks for commercial. If the second check finds new issues or unresolved prior corrections, a third check is issued. Three-round correction cycles are not uncommon for complex commercial projects and can stretch the total plan-check period to 6–10 months for large projects.

  • 06

    Final Approval and Fee Payment

    Once all reviewing divisions have approved the plans, LADBS notifies the applicant that the permit is ready to issue upon payment of the remaining fees. Permit fees under LAMC Division 91 are calculated based on project valuation — the declared construction cost. Building permit fees, plan check fees, and inspection fees are all separate line items. For most residential projects, total LADBS fees run $3,000–$15,000. For commercial projects, $8,000–$50,000+. Fee payment is made through ePlanLA or at the LADBS cashier window. The permit does not issue until fees are paid in full.

  • 07

    Permit Issuance

    After fee payment, LADBS issues the building permit electronically through ePlanLA. The approved plan set is stamped and released as the "job copy" — the set of plans that must be on the job site during construction. The permit card is issued simultaneously. The permit is valid for 12 months from issuance for most projects, with extensions available. Construction must begin within the validity period or the permit expires and a new application is required. The issuance date is the day the project team can legally begin work.

  • 08

    Construction Inspections

    During construction, the contractor requests inspections at each required stage through the LADBS inspection portal or by phone. Required inspections are specified on the approved plans and in the permit conditions. Typical residential inspection stages: foundation/pre-pour, framing, rough plumbing, rough mechanical, rough electrical, insulation, lath/drywall, and final. Commercial inspections follow a similar sequence plus LAFD inspection for fire systems and, for restaurants, LA County Health Department inspection for commercial kitchen equipment. Each inspection requires the inspector to sign off before the next stage can proceed. Scheduling inspections 2–3 business days in advance — rather than on the day the work is ready — prevents day-of delays.

  • 09

    Final Inspection and Certificate of Occupancy

    The final inspection is the last required inspection before the project is considered complete. LADBS's final inspection confirms that the completed work matches the approved plans and that all prior inspections were completed and signed off. For new buildings and change-of-use projects, a Certificate of Occupancy (C of O) is issued after the final inspection passes. For tenant improvements within an existing occupied building, a Certificate of Completion (C of C) serves the same function. For commercial projects requiring both LADBS final and LAFD final, scheduling both agencies on the same day prevents a sequential delay of 1–3 weeks between approvals. The C of O or C of C is the document that legally authorizes use of the space.

Three Processing Tiers: OTC, Standard, and Large-Scale Commercial

Not every permit goes through the same LADBS queue. Understanding which tier your project falls into is the starting point for any realistic timeline estimate.

Tier 1: Express / Over-the-Counter (OTC) — Same Day to 2 Weeks

The fastest path. Projects that meet OTC criteria are reviewed and approved at the counter or through the ePlanLA portal without entering the standard plan check queue. OTC-eligible projects include: residential solar PV systems meeting standard specifications, like-for-like water heater and HVAC equipment replacement, window and door replacements in kind, re-roofing with the same material type, EV charger installations meeting standard specs, and ADUs using LADBS's pre-approved Standard Plan Program. The key eligibility factor: the project must not require structural engineering calculations, must not be in a special zone overlay, and must not require Fire Department or Planning review. OTC permits can often be issued in 1–5 business days through ePlanLA for residential projects that qualify.

Tier 2: Standard Residential Plan Check — 6–14 Weeks

Custom ADUs, residential additions, structural remodels, and any residential project that doesn't qualify for OTC enter the standard residential plan check queue. First review takes 3–6 weeks. If corrections are issued — which happens on the majority of first submittals — a resubmittal adds another 3–5 weeks for second check. Projects requiring concurrent LAFD review (rarely triggered for residential) or Planning review (rare without variances or HPOZ) are exceptions that extend the timeline. Under California Government Code §65852.2, LADBS is legally required to complete ministerial review of qualifying ADU applications within 60 calendar days of a complete application — this statutory deadline is enforceable, though the clock doesn't start until LADBS accepts the application as complete.

Tier 3: Standard Commercial / Large-Scale — 3–14+ Months

Tenant improvements, restaurant buildouts, new commercial construction, and large residential projects enter the commercial plan check queue, which is slower than residential due to greater complexity and more reviewing divisions. A straightforward retail TI takes 6–10 weeks. A restaurant requiring County Health coordination takes 10–16 weeks. A restaurant with a Conditional Use Permit for alcohol service adds 10–18 weeks of Planning Commission process — which must run concurrently with Building to avoid sequential delay. Large new construction projects (Type I and II buildings, projects over 20,000 sq ft) go through LADBS's Large Project section and routinely take 12–24 months for full plan approval across all divisions.

LADBS Permit Timeline by Project Type (2026)

Estimates below assume a complete, code-compliant first submittal. Each correction cycle adds 3–8 weeks.

Project typePermit pathwayTypical plan check timeFactors that extend it
Solar PV (residential, standard install)Express / OTCSame day — 5 business daysNon-standard equipment, hillside grading, HOA overlay
Water heater / HVAC replacement (like-for-like)Express / OTCSame day — 3 business daysEquipment size change, upgrade to different fuel type
ADU — Standard Plan Program (pre-approved design)Express / Streamlined3–10 business daysNon-standard site conditions, Coastal Zone or HPOZ overlay
ADU — custom design, garage conversionStandard residential plan check6–10 weeks (first review)Incomplete Title 24 report, HPOZ overlay, missing soils report (hillside)
ADU — custom, detached new constructionStandard residential plan check8–14 weeks (first review)Structural corrections, grading permit required, Coastal Zone CDP
Kitchen / bath remodel — no structural changesExpress or standard (scope-dependent)Same day — 4 weeksMEP scope triggers full plan check; structural framing changes
Residential addition — structural (< 500 sq ft)Standard residential plan check6–12 weeksHillside ordinance, fault zone setback, CalGreen documentation
Electrical / mechanical / plumbing standaloneExpress (simple) or standard (complex)Same day — 3 weeksService upgrade > 200A, new gas line to structure, complex layout
Tenant improvement — retail / office (< 5,000 sq ft)Standard commercial plan check6–10 weeksChange of use, LAFD sprinkler review, ADA path-of-travel upgrades
Tenant improvement — restaurant (with Health Dept)Standard commercial + County Health8–14 weeks city; +4–8 weeks County HealthCUP for alcohol, Type I hood corrections, grease interceptor sizing
Fire rebuild — like-for-like (post-Jan 2025 fires)Expedited (EO N-4-25 emergency track)30 days target (complete submittal)Coastal Zone CDP (concurrent), incomplete Chapter 7A docs, custom design scope
Commercial new construction (Type V, < 10,000 sq ft)Standard commercial plan check12–20 weeksMultiple correction cycles, Planning entitlements, LAFD high-rise review

Timelines are estimates for complete, well-prepared submittals under current LADBS processing. Actual times vary by project complexity, division workload, and special zone requirements. Fire rebuild timelines reflect current emergency program parameters — confirm status with LADBS.

Why Your Permit Is Taking Longer Than Expected

The most common delay causes — and how to prevent each one before submittal.

Delay causeFrequencyHow to avoid it
Incomplete plans at submittalVery commonPre-submittal review against current LAMC Division 91 + CBC Title 24 before uploading to ePlanLA. Check all required sheets, Title 24 energy report, CalGreen checklist, and soils report (if required).
Wrong submittal pathway or portalCommonConfirm whether OTC, Express, Standard Residential, or E-PlanLA Standard Commercial applies to your project before submittal. Confirm which LADBS district office has jurisdiction over the address.
Missing Title 24 energy compliance reportCommonInclude a complete Title 24 compliance report (HERS-verified where required) in every plan check package. It must reflect the specific project — not a prior project's report adapted without recalculation.
Missing or incorrect ADA accessibility documentationCommon for commercialEvery commercial TI must include an ADA path-of-travel analysis and upgrades to accessible elements (parking, entrance, restrooms) triggered by the project's construction cost. Document this explicitly on the plans.
Fire Department review not submitted concurrentlyVery commonSubmit to LAFD on the same day as LADBS for any project requiring fire sprinkler modifications, commercial kitchens, fire alarm upgrades, or assembly occupancy changes. LAFD review is a separate queue — starting it late adds 4–8 weeks.
Coastal Zone or HPOZ overlay not identifiedCommon near coast/historic areasConfirm Coastal Zone status via ZIMAS before preparing plans. Confirm HPOZ designation. Both overlays require additional documentation and add review steps not in the standard LADBS checklist.
Structural calculations missing or non-compliantCommon for additions, ADUs, hillsideEngage a licensed structural engineer early. Plans for any structural work must include engineer-stamped calculations that comply with CBC 2022 / ASCE 7 seismic standards. Missing calculations trigger immediate correction.
Slow correction response by applicant or architectCommonRespond to all correction comments within 1–2 weeks of receipt. LADBS allows 180 days for resubmittal but every day of delay is a day the project doesn't move. Designate a single point of contact to review and act on corrections immediately.
Planning review not initiated in parallelCommon for change-of-use projectsFor any change-of-use project — retail to restaurant, office to production, residential to commercial — initiate Planning Division clearance on the same day as LADBS submittal. Waiting for Building permit approval before starting Planning adds 4–12 weeks.

ADU Permits: The 60-Day Legal Deadline

California Government Code §65852.2 establishes a statutory deadline for ADU permit review: cities and counties must act on a complete ADU application within 60 calendar days of receiving it. For the City of Los Angeles, this means LADBS must either approve or deny a qualifying ADU application within 60 days of accepting it as complete. This is a mandatory deadline — not a target — and failure to comply can give the applicant grounds to deem the application approved.

The critical qualifier: the 60-day clock starts on the date LADBS accepts the application as complete. An incomplete application — missing the Title 24 energy report, missing the soils report, incorrectly formatted ePlanLA upload — doesn't start the clock. LADBS issues a notice of incompleteness and returns the application; the clock doesn't run until a complete resubmittal is accepted.

The most effective strategy for ADU applicants who want to enforce the 60-day deadline: submit a complete, fully code-compliant application the first time. A permit expediter's pre-submittal review — confirming all required documents are present and correctly formatted before uploading — is the most direct route to starting the 60-day clock on day one. See our ADU permit services page for more detail.

Fire Rebuild Permits: January 2025 Emergency Framework

Following the January 2025 Palisades Fire and Eaton Fire, Governor Newsom issued Executive Order N-4-25 and the City of Los Angeles issued emergency orders establishing expedited permitting processes specifically for fire-damaged properties. Under these programs, qualifying like-for-like rebuilds — same footprint, same square footage, same design as the destroyed structure — are targeted for plan check completion within 30 calendar days of a complete, accepted submittal at LADBS.

The One-Stop Permit Centers co-locate representatives from LADBS, City Planning, Public Works, Fire, and utilities, allowing multi-agency coordination in a single visit rather than separate trips to separate offices. Fee waivers eliminate plan check and permit issuance fees for qualifying rebuild projects — for many property owners, the government permit fees are zero. Self-certification by a licensed architect or engineer can further compress the plan check timeline for eligible custom-design rebuilds.

Important caveats: these are emergency measures with defined time periods and specific eligibility criteria. The 30-day target applies only when: (1) the submittal passes intake screening as complete on the first attempt; (2) the project qualifies as like-for-like (no footprint expansion, no added square footage); and (3) Chapter 7A fire-resistant construction compliance documentation is correctly included in the plan set. Confirm current program status and eligibility with LADBS directly — the emergency programs have defined expiration dates that may change.

For Pacific Palisades properties in the Coastal Zone, a Coastal Development Permit from LA City Planning's Coastal Division runs concurrently with the LADBS rebuild permit. Starting the CDP application at the same time as the LADBS application — not after — is essential to avoiding a sequential delay that pushes the total timeline from 30 days to 6+ months. See our fire rebuild permit guide for the full process, and our Los Angeles permit page for jurisdiction-specific detail.

How Professional Permit Expediting Compresses These Timelines

Women-Owned Business Enterprise

Ocean Permits & Development — Los Angeles

A professional permit expediter doesn't shorten timelines by paying LADBS to move faster — the government queue is what it is. What an expediter changes is why projects lose time: incomplete submittals, wrong pathways, slow correction response, sequential agency submissions, and missed local code requirements.

  • Pre-submittal review against current LAMC Division 91 + CBC Title 24 — catching corrections before LADBS sees the plans
  • Correct pathway selection upfront — OTC vs. Standard vs. E-PlanLA based on current eligibility criteria
  • Concurrent agency submissions — LADBS, LAFD, Planning, and County Health all on the same day
  • Correction response within 1–2 weeks — not sitting in a queue for 6 weeks before the team reacts
  • Fire rebuild expertise from Pacific Palisades and Altadena — applied to any fire-affected property in the region
  • Women-owned business enterprise (WBE) · Free initial consultation · +1 (213) 277-8777

See our permit expediting vs. DIY guide and our 2026 pricing guide for more detail. Or read our permit expediting services page.

Frequently Asked Questions

How long does an ADU permit take in Los Angeles?

An ADU permit in the City of Los Angeles typically takes 6–14 weeks for a custom design going through standard LADBS plan check. Under California Government Code §65852.2, LADBS must complete ministerial review of qualifying ADU applications within 60 calendar days of receiving a complete application — this is a statutory deadline, not a goal. ADUs using the LA Standard Plan Program (pre-approved designs) can qualify for Over-the-Counter approval in days to a few weeks. JADUs (Junior ADUs entirely within the existing footprint) typically process faster than detached ADUs. The 60-day clock starts on the day LADBS accepts the application as complete — incomplete submissions go into a correction queue and the clock doesn't start.

What is an Express Permit or Over-the-Counter (OTC) permit at LADBS?

An Express Permit (also called Over-the-Counter or OTC) is a same-day or same-visit permit issued for simple, low-risk projects that don't require full plan check. LADBS reviews the application at the counter or electronically and issues the permit on the spot — or within 1–5 business days for electronic OTC submittals. Common OTC-eligible projects include: residential solar photovoltaic systems (standard installations), water heater replacements, EV charger installations, re-roof permits (same material, same slope), window replacements, and certain ADUs using pre-approved Standard Plans. OTC eligibility depends on meeting specific criteria — scope, valuation, occupancy type, and zoning. Projects that appear simple but don't meet OTC criteria go into the standard plan check queue.

How do I know if my project qualifies for OTC or requires full plan check?

LADBS publishes a list of projects eligible for Over-the-Counter processing. Generally, a project qualifies for OTC if: the work is simple and low-risk (replacements, standard installations); no structural calculations or engineered drawings are required; the project isn't in a special zone (fault zone, flood zone, Very High Fire Hazard Severity Zone, Coastal Zone, or HPOZ historic overlay); and the project doesn't require separate Fire Department or Planning review. The most reliable way to confirm is to submit a pre-application inquiry through ePlanLA or visit the LADBS public counter for a counter determination. A permit expediter confirms OTC eligibility before submittal — misclassifying a project as OTC-eligible when it requires full plan check loses weeks when the submission is rerouted.

How long does a commercial tenant improvement (TI) permit take at LADBS?

A straightforward commercial TI permit at LADBS — no change of use, no CUP, no Fire Department review beyond standard — typically takes 6–10 weeks for first plan check. TIs requiring a change of use (converting retail to restaurant, or adding a kitchen to an office) add Planning clearance and often LAFD review, extending to 10–16 weeks. Restaurant TIs with a Conditional Use Permit for alcohol service add another 10–18 weeks for the Planning Commission process — running concurrently is essential. Large commercial TIs over 10,000 sq ft or with significant structural modifications move to the Standard Plan Check track and take 12–20+ weeks. The single most impactful variable is whether the submittal passes completeness review on the first attempt — incomplete packages restart from the beginning of the queue.

What happens if LADBS rejects my plans (issues plan check corrections)?

When LADBS plan check reviewers find code compliance issues or missing documentation, they issue plan check corrections (also called comments or a correction list). The applicant receives the corrections through ePlanLA and has a defined period to correct and resubmit. The corrected plans go back into the review queue — but typically get priority over first-time submittals. A single correction cycle adds 3–6 weeks to residential projects and 4–8 weeks to commercial projects. Three correction cycles can turn a 6-week project into a 5-month project. The most effective way to avoid correction cycles is pre-submittal review against current LAMC Division 91 and CBC Title 24 standards before anything is submitted — catching and resolving issues before a reviewer sees them.

How long does a fire rebuild permit take in Los Angeles after the January 2025 wildfires?

Following the January 2025 Palisades Fire and Eaton Fire, the City of Los Angeles and LA County established expedited permit review processes for fire-damaged properties. For qualifying like-for-like rebuilds — same footprint, same square footage, same design — LADBS targets plan check completion within 30 calendar days of a complete, accepted submittal under the emergency executive order framework (Governor Newsom's EO N-4-25 and subsequent City emergency orders). Rebuilds using pre-approved Standard Plans can qualify for even faster processing. Rebuilds that expand the footprint or change the design significantly are processed under standard (not expedited) review and take 8–14 weeks. Coastal Zone properties in Pacific Palisades require a concurrent Coastal Development Permit, which adds timeline complexity. The 30-day target applies only to complete submittals — incomplete packages do not qualify for expedited review. Confirm current status of emergency programs with LADBS directly, as these are time-limited emergency measures.

Can I legally speed up the LADBS permit process?

Yes — through legitimate pathways. LADBS offers several mechanisms to accelerate review: (1) Priority Plan Check — LADBS's paid priority review service for residential and commercial projects, which moves an application ahead in the queue for an additional fee. (2) Over-the-Counter / Express processing — for qualifying projects, same-day issuance without entering the standard queue. (3) Standard Plan Program — pre-approved ADU and other standard designs bypass full plan check. (4) Self-certification — licensed architects or engineers may self-certify code compliance for eligible projects, bypassing plan check for certain elements. (5) Concurrent agency submissions — submitting to LAFD, Planning, and other agencies on the same day as LADBS rather than sequentially. What you cannot do is pay a government fee to get a higher position in the standard queue beyond the official Priority Plan Check program — any 'expediting' that promises queue manipulation is not a legitimate service.

What is ePlanLA and how does it affect permit timelines?

ePlanLA is LADBS's electronic plan check portal for digital submittal and review of permit applications. It replaced the paper counter submittal process for most project types. Using ePlanLA correctly is essential for efficient permit processing: applications submitted with incorrect file formats, missing sheets, incorrect naming conventions, or oversized files are flagged for correction before they reach a plan checker — adding days to weeks of delay before review even begins. ePlanLA also allows applicants to track plan check status, receive and respond to corrections electronically, and coordinate with multiple reviewing divisions. A permit expediter who works in ePlanLA daily knows the current formatting requirements, common intake rejection reasons, and how to structure the electronic submittal package to clear the intake check on the first attempt.

How long do construction inspections take to schedule in Los Angeles?

LADBS inspection scheduling is typically 1–5 business days from the inspection request, though this varies by inspection type and current inspector workload. Routine residential inspections (framing, rough MEP, insulation) are generally available within 2–3 business days. Specialized inspections — special inspections for structural elements, fire sprinkler tests, and final inspections requiring multiple trades — may take longer to coordinate. The inspection sequence matters: certain inspections cannot be scheduled until prior inspections are approved and signed off. Understanding the required inspection sequence for a project type — and scheduling ahead rather than waiting until work is complete — keeps construction moving without inspection-caused gaps. LAFD inspections for fire sprinkler systems and commercial hood suppression systems are scheduled through the Fire Department separately and have their own queue.

What is a Certificate of Occupancy (C of O) and when do I get one?

A Certificate of Occupancy (C of O) is the document LADBS issues after a final inspection confirms that a new building or a changed use complies with all applicable codes and the approved permit. For new construction and change-of-use projects, a C of O is required before the space can legally be occupied. For tenant improvements to existing occupied spaces, a Certificate of Completion (C of C) serves a similar function without technically changing the occupancy classification. LADBS issues the C of O or C of C after the final inspection passes. For commercial projects, the final inspection typically requires sign-off from Building & Safety, Fire Department, and sometimes the Health Department (for food service). Scheduling all three agencies' final inspections for the same day — rather than sequentially — is one of the most impactful things a permit expediter does at the project close.

Why is my LADBS permit taking so long?

The most common reasons for LADBS permit delays, in order of frequency: (1) Incomplete or non-compliant plans — the single largest cause. Correction cycles each add 3–8 weeks. (2) Missing the correct submittal pathway — a project submitted through the wrong portal, wrong district office, or wrong fee payment process can sit unprocessed for weeks. (3) Multiple agency review — projects requiring LAFD, Planning, Public Works, or County Health all have separate queues that don't automatically coordinate with LADBS's timeline. (4) Special zone overlays — Coastal Zone, HPOZ, fault zone, and Very High Fire Hazard Severity Zone projects require additional documentation that often triggers corrections on first review. (5) High volume periods — LADBS processes tens of thousands of permits annually; workload spikes (post-fire, post-COVID backlogs) slow all queues. (6) Applicant response delays — correction windows allow 180 days for resubmittal, but every day not spent responding is a day of delay. A permit expediter addresses causes 1, 2, 3, 5, and 6 directly.