Your Building Permit Expired: What Happens and How to Renew or Reinstate It

I pulled a permit for a bathroom remodel a few years back, got busy with shifts at the firehouse, and the project stalled out for the better part of a year. When I finally went to schedule my rough-in inspection, the city told me my permit had lapsed. My stomach dropped. I thought I was going to have to tear open finished walls or pay some huge penalty.

It turned out fine, but I learned a lot in the process, and I hear this same worry from homeowners all the time. So let me walk you through what actually happens when a building permit expires, and the calm, practical steps to get yourself back in good standing.

Quick Answer: An expired permit is generally treated as if you have no permit at all for the unfinished work. Expiration timelines vary by jurisdiction, so check with your local building department. If you're inside your city's window, you can usually renew or reestablish the existing permit for a fee. If too much time has passed, you'll likely apply for a new permit and pass the required inspections.

What "expired" actually means

When a permit expires, the city treats the remaining work as unpermitted. Whatever you'd already gotten inspected and signed off stays on the record, but any work that still needs inspection is now, in the eyes of the building department, work done without a permit.

That matters for two reasons that most people don't think about until it's too late:

I don't say that to scare you. I say it because the fix is almost always more straightforward than people fear, and the longer you wait, the fewer options you have.

How long do you have? It varies by jurisdiction

Here's where I have to be honest with you, because there's a lot of bad information floating around online. You'll see blog posts confidently state that permits expire after 180 days. Don't take that as gospel. That number gets copied and pasted across the internet, but permit expiration timelines vary widely from one city and county to the next. Some are shorter, some are much longer.

The only reliable answer is the one your local building department gives you. But let me give you a real, verified example so you can see how one actual city handles it.

In Seattle, the Department of Construction and Inspections (SDCI) sets it up like this:

Notice that's an 18-month window, not 180 days. And notice the fee is tied to Seattle's own hourly rate, not some universal "half the original cost" rule you might read elsewhere. Every jurisdiction prices this differently. The lesson isn't "18 months everywhere." The lesson is: look up your specific building department's rules before you assume anything. If you're not sure how to do that, my guide on how to look up building permits walks through finding your local records and department.

Your two main paths forward

Once you know your city's rules, your situation almost always lands in one of two buckets.

Path 1: Renew or reinstate the existing permit

If you're still inside your jurisdiction's window, this is the easy road. You contact the building department, ask about renewing or reestablishing your permit, and pay whatever fee they charge. In some places it's a flat renewal fee; in others, like the Seattle example above, it's a multiple of their hourly rate. Your original permit number and approved plans usually carry over, so you're not starting from scratch.

A few things to have ready:

Path 2: Apply for a new (after-the-fact) permit

If too much time has passed and reinstatement is off the table, you apply for a new permit. When there's already finished work sitting behind those walls, this is often called an after-the-fact or retroactive permit. It sounds intimidating, but it's a well-worn path that building departments deal with constantly.

The catch is that the city needs to verify the work that was done while unpermitted. That can mean:

Is it more work than a simple renewal? Yes. But it's a normal, legitimate process, and it ends with you holding a valid permit and a clean record. If you're weighing whether to just leave it alone, read what happens if you build without a permit first. Closing it out properly is almost always cheaper than the alternative down the road.

The step-by-step I'd follow

Here's the exact order I'd tackle this in, based on what worked for my own stalled remodel:

If you're at step four and need help, you can find a licensed pro to inspect and close out your permit through our directories. For deck and structural work, browse our vetted deck builders. For electrical work, our licensed electricians directory is the place to start. A good pro has closed out lapsed permits before and knows exactly what your inspector will be looking for.

Don't let it snowball

The biggest mistake I see is treating an expired permit like it'll just quietly go away. It won't. It sits on the property record, and it tends to resurface at the worst possible moment, usually when you're trying to sell and the title company flags it.

The good news is that this is a solvable problem at every stage. The sooner you act, the more likely you are to land in the easy renewal path instead of the after-the-fact one. If you're starting a brand-new project and want to avoid this whole headache, my guide on how to get a building permit covers doing it right from day one, including keeping the permit active until you're finished.

You've got this. Make the call to your building department, find out where you stand, and take it one step at a time.

Frequently Asked Questions

Does an expired permit mean I have to tear out my work?

How long do I have before my building permit expires?

Can an expired permit stop me from selling my house?

What's an after-the-fact permit?

Is renewing a permit expensive?

Should I hire a contractor to fix a lapsed permit?