How Long a Solar Permit Actually Takes: Clark County, Vancouver, Camas and Portland

Almost every solar timeline question we get is really a permit question. The panels go on the roof in a day or two. What people are actually waiting on is a building department, and building departments are not interchangeable.

Below is what each jurisdiction actually publishes, plus the patterns we see filing permits in these counties every week — not a single national average pretending to apply to your address.

Why the permit is the long pole

A residential solar project has four clocks running in sequence: design and engineering, the building and electrical permit, the install itself, and the utility’s permission to operate. Only one of those is under the installer’s control, and it is not the longest one.

The install is typically one to two days on the roof. The permit is measured in weeks, and permission to operate can add more after that. When a neighbour tells you their solar took four months, the roof work was two days of it.

Turnaround by jurisdiction

Permit turnaround is the part of a solar project people most want a number for, and the part where a single number is most misleading. Here is what drives the difference, and how to get a real figure for your own address.

The honest answer is that no single number covers it, and any company quoting you one flat figure across every jurisdiction is quoting a sales line rather than an estimate. What we can tell you is what actually creates the spread, so you can ask the right question about your own address.

• Online solar permitting versus full plan review. This is the single biggest divider. Jurisdictions with a dedicated online solar path move in a fraction of the time of ones requiring full plan review by a person with a queue.
• Project complexity. A straightforward roof mount on a recent home is the fast case. Ground mounts, battery additions and anything involving a service upgrade add review steps and often a second department.
• Season. The same application submitted in February and in July does not come back in the same number of days. Summer is the busy season for every building department in the region.
• Whether the first submission was complete. A resubmittal restarts most of the clock, and this is on the installer rather than on you.

When you are comparing quotes, ask each company for their recent median in your specific jurisdiction, and how many of their projects that median is based on. A median with three jobs behind it is an anecdote. That question tells you more about a company than any advertised timeline, because it is answerable only by someone who tracks it.

What Each Jurisdiction Publishes

• Clark County / Vancouver, WA (Clark Public Utilities interconnection): the utility says it typically processes a completed interconnection application within about four working days, then installs the new meter within about five working days of a passed inspection. The building and electrical permit itself runs on the county’s own separate queue.
• Camas, WA: the city does not publish a fixed turnaround for building permits — staff note it depends on current volume, though some simple like-for-like permits are issued same day. Ask at submittal for the current estimate.
• Washougal, WA: also does not publish a fixed number. Expect something similar to Camas and confirm current volume with the building department directly.
• Portland, OR (Bureau of Development Services): standard residential solar plan review typically runs 2–3 weeks, and the post-installation inspections — city, Energy Trust of Oregon, and your utility — usually add another 2–4 weeks before Permission to Operate. Most projects land in the 4–8 week range end to end.
• Clackamas County, OR: prescriptive (standard roof-mount) permits are typically issued 2–3 business days after submittal. Non-prescriptive projects — ground mounts, unusual roofs, high snow or wind load — can take up to 4 weeks.

Multnomah County and Battle Ground don’t currently publish a specific turnaround figure. For either, ask your installer for their recent experience rather than assume a number — which is exactly the question raised above.

A few patterns worth knowing before you look at any table of numbers:

• Jurisdictions with online solar permitting are consistently faster than ones requiring a full plan review.
• Simple roof-mount projects on a recent home move faster than ground mounts, battery additions, or anything involving a service upgrade.
• A resubmittal restarts most of the clock. The single biggest cause of a slow permit is an incomplete first submission, which is on the installer, not you.
• Summer is the busy season. The same application submitted in February and in July does not come back in the same number of days.

What makes your project the slow one

Three things reliably add weeks.

A main panel that needs upgrading

If your service panel cannot accept the solar breaker, the project now includes an electrical service upgrade, which brings the utility into the permit conversation and adds a coordination step nobody controls end to end.

A ground mount

Ground mounts trigger setback review, sometimes a site plan, and in some jurisdictions a separate structural review. They are worth doing when the roof is wrong for solar, but they are not the fast option.

An HOA

The HOA review runs parallel to the permit, not inside it, and it is the one timeline no installer can push on. Washington law limits what an HOA can prohibit, but it does not limit how long a board takes to hold a meeting.

What you can do to make it faster

• Get the HOA submission in on day one, before the permit is even filed, since it is the least predictable clock.
• Find your electrical panel photo and your last twelve months of utility usage before your site visit. Missing information delays the design, and the design gates the permit.
• If your roof is within a few years of needing replacement, decide about the roof before the permit, not after. Re-roofing under an existing array costs more than sequencing it correctly.
• Ask your installer what their first-submission approval rate is in your specific jurisdiction. It is a fair question and it predicts your timeline better than any published average.

Permission to operate is a separate wait

Once the permit is closed and the inspection passes, the utility still has to authorise the system to export. That is a different queue with a different clock, and it varies by utility rather than by city. Your system can be fully installed and inspected and still not legally switched on.

Permission to operate is granted by your utility, not your city, so it runs on a completely different queue. It varies by utility rather than by jurisdiction, and it varies with how busy that utility’s interconnection desk is at the time.

What matters practically is that this step exists at all. Your system can be fully installed, inspected and signed off, and still not be legally allowed to export a single kilowatt-hour. Ask your installer to name the utility handling your interconnection, and to tell you what they are currently seeing from that utility — Clark PUD, Cowlitz PUD, PGE and Pacific Power do not behave identically, and the answer changes through the year.

Want a straight answer for your address and your jurisdiction? Call us at 360-313-7190 or request a free quote.