Permit Timelines in the San Fernando Valley

One of the first questions almost every homeowner asks is some version of "how long until I can start?" It is a fair question, and the honest answer is that permit timelines in the San Fernando Valley swing from same-day to several months depending on what you are building, where your property sits, and how complete your drawings are when you submit them. There is no single number that fits every project, and anyone who promises you one without seeing your plans is guessing.

Construction is complex. We make it clear. This guide walks through how permits actually move through the system here, from the simplest over-the-counter approvals to the longer plan check process most additions and ADUs require. The goal is to give you a realistic picture so you can plan your timeline, your budget, and your patience accordingly. When you understand where the delays come from, you can do a lot to avoid them.

Two paths: over-the-counter versus plan check

Every permit follows one of two broad paths. The first is the fast lane for simple, routine work that does not need anyone to review a set of plans. The second is plan check, where a city plan reviewer examines your drawings to confirm the design meets code before you can pull the permit. The path your project takes is determined by scope, not by how badly you want to start. A water heater swap and a two-story addition do not move at the same speed because the city is not asked to do the same amount of work.

In the City of Los Angeles, which covers most of the Valley, the Department of Building and Safety (LADBS) runs several distinct permit processes. Knowing which one your project qualifies for tells you most of what you need to know about timing:

• Express permits: for routine, non-structural work that needs no plan review at all, such as a like-for-like water heater, certain electrical or plumbing repairs, or a re-roof in kind. These are typically issued within a few business days, and many can be filed entirely online.
• Counter Plan Check: same-day, over-the-counter review for small projects a reviewer can check in roughly 45 to 60 minutes, like a minor non-structural remodel.
• Expanded Counter Plan Check: for modest projects that take a reviewer up to about two hours, such as a medium-sized addition or a multi-room tenant improvement. You usually get an appointment within a couple of weeks rather than a same-day slot.
• Regular Plan Check: the full review process for larger or more complex projects. This is where most additions, new structures, and anything structural land, and it is where timelines stretch from weeks into months.

Most of the projects we are asked about, additions, ADUs, garage conversions with structural changes, and whole-home remodels, fall into regular plan check. That is the path worth understanding in detail, because it is where the real waiting happens.

How the LADBS plan check process works

For projects that need a full plan check, the City of Los Angeles has moved most of the work online through ePlanLA, its electronic plan review system. You submit your drawings and project documents digitally, and the review, the corrections, and the final permit issuance all happen through that portal. For simpler work that does not need plan review, the city uses a separate online tool for express permits. Going electronic has removed a lot of the old drive-downtown-and-wait friction, but it has not changed the fundamental sequence.

After you submit, your project is assigned to a plan reviewer, sometimes more than one if it touches different disciplines. The reviewer checks the drawings against the building, residential, electrical, plumbing, mechanical, and energy codes, plus zoning. If everything is correct and complete, your permit is approved. In practice, the first review almost always comes back with a set of corrections, which starts a back-and-forth cycle that is the single biggest variable in how long your permit takes.

Realistic ranges, framed honestly: a straightforward project that qualifies for counter or expanded counter review can be permitted in the same visit or within a couple of weeks. A typical addition or ADU in regular plan check often runs in the range of one to three months from first submittal to issued permit. Genuinely complex projects with multiple overlays or agency clearances can take longer. These are general ranges, not promises, and your actual time depends heavily on the factors below.

Why jurisdiction matters more than people expect

The San Fernando Valley is not one permitting system. Most of it, including Sherman Oaks, Studio City, Encino, Tarzana, Van Nuys, North Hollywood, and Woodland Hills, is part of the City of Los Angeles and reviewed by LADBS. But several cities inside or bordering the Valley are entirely separate municipalities with their own building departments, their own adopted codes, their own fee schedules, and their own timelines.

• Burbank, Glendale, Beverly Hills, and West Hollywood are independent cities, not part of Los Angeles. A project there does not go through LADBS at all.
• Toluca Lake is split: part falls under the City of Los Angeles and part under Burbank, so the exact address determines who reviews your plans.
• Each separate city sets its own review speed, submittal requirements, and design review rules, so a project that flies through one jurisdiction can move slower in the next town over.

This is why the very first thing to confirm on any project is which agency has jurisdiction over your specific parcel. It drives the timeline, the cost, the forms, and the design standards. We confirm jurisdiction before we draw anything, because a set of plans built to the wrong city's rules is wasted time.

What scope pushes you into longer review

Some features reliably add review steps, extra reviewers, or additional agency sign-offs. None of them are reasons to avoid a project you want, but they are reasons to plan a longer runway and to get the drawings right the first time. The more of these your project touches, the longer your honest timeline estimate should be.

• Structural work: anything that adds, removes, or modifies load-bearing elements requires structural engineering and a structural review, which adds time over a cosmetic remodel.
• Additions and new square footage: a home addition expands the footprint or volume and triggers a fuller review of zoning, setbacks, height, and energy compliance.
• ADUs: state law has streamlined accessory dwelling units, but a detached or substantially new ADU still goes through plan check and can pick up utility and fire requirements.
• Hillside lots: properties in designated hillside areas carry extra grading limits, slope setbacks, and structural requirements under the Baseline Hillside Ordinance, and grading itself can require its own review.
• Historic overlays (HPOZ): if your property sits in a Historic Preservation Overlay Zone, design changes get an additional preservation review on top of the building plan check, which can add weeks.
• Coastal, fire hazard severity, and flood zones: special overlays bring added requirements and, in some cases, review by other agencies.
• Utility and fire coordination: increasing your electrical service often means coordinating LADBS with the utility, LADWP in the City of Los Angeles, and certain projects require a separate fire department review.

The pattern is consistent: the more your project changes the structure, the lot, or the building's relationship to its surroundings, the more eyes it needs, and more eyes means more time. Knowing this up front lets us route the design correctly and gather the right clearances in parallel instead of discovering them one at a time.

Correction cycles: the real source of delay

Here is the part that surprises most homeowners. The clock time inside the city's queue is usually not what blows up a schedule. The corrections are. When a reviewer finds issues with your plans, they issue a correction list, the drawings go back to your design team for revisions, and then they re-enter the queue for another round of review. Each loop can add weeks, and a thin or sloppy set of plans can easily generate three or four rounds.

This is also the part you have the most control over. A complete, accurate, code-compliant plan set that anticipates the reviewer's questions can clear with one or two minor correction rounds. A vague set that leaves details for later invites correction after correction. The difference between those two outcomes can be a month or more, and it costs nothing extra to do it right the first time. It just requires the drawings to actually be finished before they are submitted.

Why complete drawings the first time shorten everything

Almost every timeline problem traces back to incomplete information at submittal. When the structural details, energy calculations, electrical loads, accessibility notes, and zoning data are all present and correct, the reviewer can do their job in one pass. When pieces are missing, the reviewer cannot approve, so they issue corrections and you start a new cycle. The plan set is not paperwork. It is the thing being reviewed, and its quality directly sets your speed.

This is why we invest heavily on the front end during design and permits, before a single correction comes back. A coordinated set where the architectural, structural, and engineering sheets agree with each other, where the title sheet carries the right code edition and zoning information, and where the energy documentation is attached, gives the reviewer no reason to bounce it. Spending the extra days to finish the drawings properly is the cheapest time you will ever buy on a project.

The inspection sequence during construction

Getting the permit is the start of the city's involvement, not the end. Once you are building, the work has to be inspected at specific stages, and each inspection has to pass before the next phase of work can be covered up. Skipping or failing an inspection stalls the job just as surely as a slow plan check, so the inspection schedule is part of your timeline too.

• Foundation and underground: footings, rebar, and any underground plumbing or electrical are inspected before concrete is poured or trenches are backfilled.
• Rough framing, electrical, plumbing, and mechanical: inspected once the structure is up and the systems are run, but before insulation and drywall hide them.
• Insulation: verified before the walls are closed.
• Final inspection: the whole project is checked against the approved plans and code before it can be occupied or considered complete.

Inspections are usually scheduled a day or more in advance, so coordination between the work crew and the inspector matters. A project that calls for inspection at the right moment, with the work actually ready, keeps moving. One that calls too early, or has work that is not ready, eats a wasted inspection slot and waits for the next one. Managing this cadence well is a quiet but real part of finishing on schedule.

What you can do to keep approval moving

You have more influence over your timeline than it feels like from the outside. Most of the speed is decided before submittal, in the quality of the plans and the accuracy of the jurisdiction call, and the rest comes down to responsiveness once the review is underway. A homeowner who answers questions quickly and lets the team submit a finished set rather than a rushed one almost always gets permitted faster.

• Confirm the correct jurisdiction and zoning for your exact address before design begins, so the plans are built to the right rules.
• Insist on a complete, coordinated plan set before submittal rather than racing to file an unfinished one.
• Identify overlays early. Knowing about an HPOZ, hillside designation, or fire zone up front lets you plan the extra review instead of being surprised by it.
• Respond quickly to correction lists. Every day a revision sits is a day added to your permit.
• Use the right process for the scope. Pushing simple work through full plan check, or trying to force a complex project through the counter, both waste time.
• Keep utility and agency clearances moving in parallel with the building review rather than starting them after the permit is issued.
• Schedule inspections only when the work is genuinely ready, so you do not burn slots and wait for the next opening.

None of this requires you to become a permit expert. It requires a team that treats the timeline as part of the job, builds the drawings to clear in as few cycles as possible, and tells you the truth about how long your specific project will take. When the process is run that way, the waiting becomes predictable instead of mysterious.

If you are weighing a project and want a clear, honest read on the permit timeline for your address and scope, we are happy to walk you through it. Reach out for a free estimate. There is no pressure, just a straight answer about what your project will involve and how long the approval is likely to take.