Your permit number is printed on the physical permit itself, in your local government's online portal, or in confirmation emails from when you applied

The fastest place to look is the permit document you received—it's usually printed in the upper right corner or along the top edge, often labeled "Permit No." or "Permit #". If you don't have the physical copy, your city or county's online permit search tool can retrieve it using your address or property details. You can also check your email for the confirmation message sent when your permit was issued; that message almost always includes the permit number.

Where you look depends on what type of permit you hold and which government office issued it. A building permit from your city's planning department lives in a different system than a business license from your county clerk. This guide covers the main places homeowners and business owners find permit numbers.

Key Takeaways

  • Your permit number appears on the physical permit document itself, usually in the top corner or header area.
  • Most cities and counties offer a free online permit search tool on their planning or building department website where you can look up your permit by address.
  • The confirmation email sent when your permit was issued contains the permit number and is often easier to find than the physical document.
  • If you cannot locate your permit number, calling your local building or planning department with your address is the fastest way to get it.

Check the physical permit document first

If you have the permit in hand, the number is almost always visible without opening or unfolding anything. Look at the top of the page—most permits print the number prominently in the header or upper right corner. It may be labeled "Permit Number", "Permit No.", "Permit #", or straightforward "No." depending on your jurisdiction.

The number is usually a combination of digits, sometimes with letters or dashes (for example: 2024-001234 or BP-2024-5678). Write it down exactly as it appears, including any letters, dashes, or leading zeros. If you've misplaced the physical permit, move to the next section—you don't need it to find the number.

Search your local government's online permit database

Nearly every city and county maintains a free, public-facing permit search tool on their website. You can search by your street address, property parcel number, or sometimes by owner name. The tool will return all active and recent permits for that property, each with its number displayed.

To find your jurisdiction's search tool, go to your city or county website and look for "Permits", "Building Permits", "Permit Search", or "Public Records". The link is usually under Planning, Building Department, or Community Development. Once you're in the search tool, enter your address and the system will show you every permit issued for that location. If you're searching for a business permit rather than a building permit, look for your county clerk's office or business licensing department instead.

If you're not sure which government office issued your permit, start with your city. Most residential and commercial building permits come from the city planning or building department. If that search returns nothing, try your county's system next.

Look in your email for the permit confirmation

When a permit is issued, the government office sends a confirmation email to the address you provided on the process. That email almost always includes the permit number in the subject line or body. Search your email inbox for keywords like "permit", "approved", or the year the permit was issued.

If you applied online, check your spam or promotions folder—government emails sometimes land there. If you applied in person or by mail, the confirmation may have been sent to a business email or a different address than you remember. If you still can't find it, the next step is to contact the issuing office directly.

Call or visit your local building or planning department

If you've checked the physical permit, searched online, and looked through your email without success, contact the office that issued the permit directly. Have your street address and the approximate date you applied ready. The staff member can pull up your record in seconds and give you the permit number over the phone.

Most cities and counties list their building or planning department phone number on their website. You can also visit in person during business hours—many offices have a public counter where you can request permit information on the spot. Some jurisdictions also allow you to request this information by email, though phone is usually faster.

Understand what your permit number tells you

Permit numbers vary by jurisdiction, but most follow a pattern that encodes the year and type of work. A number like "2024-B-001234" might mean it was issued in 2024, it's a building permit (B), and it's the 1,234th permit issued that year. Others use a straightforward sequential number with no embedded information.

The format doesn't matter for your purposes—you just need the exact number as it appears on the permit or in the system. When you need to reference your permit (to a contractor, inspector, or insurance company), always provide the full number exactly as written, including any dashes, letters, or leading zeros.

What to do if your permit number doesn't match records

Sometimes a homeowner or business owner finds a number on an old permit but the online system shows a different number for the same project. This usually means the permit was amended or reissued. An amendment creates a new permit number while keeping the original work under review. If you see multiple numbers for the same address and project, contact the building department to confirm which one is current.

If you find a permit number online but don't remember explore for it, that's worth investigating too. Check the permit details to see what work it covers and when it was issued. If it's not yours, report it to the building department—it may indicate an error in their records or activity on your property you should know about.

Frequently Asked Questions

Can I find someone else's permit number?

Yes. Permit records are public documents in most jurisdictions. You can search by address to see all permits issued for a property, even if you don't own it. This is useful if you're buying a home and want to know what work was done, or if you're concerned about unpermitted work on a neighboring property.

What if my permit expired or was denied?

Expired and denied permits still have numbers and still appear in the public record. Search your address in the online system and you'll see the status listed—active, expired, denied, or completed. The number itself doesn't change based on status.

Do I need my permit number to get a copy of the permit?

No. You can request a copy from the building department using just your address and the approximate date you applied. They'll find it in their system and provide a copy. Having the permit number speeds up the process, but it's not required.

Why does my online search show multiple permits for the same project?

Amendments and reissues create new permit numbers for the same work. If you see several numbers for one project, the most recent one is usually the active one. Call the building department if you're unsure which number to use when referencing the permit.

Can I look up a permit from years ago?

Yes. Most jurisdictions keep permit records online going back at least 10 years, and many keep them indefinitely. Search your address in the online system to see historical permits. If the online database doesn't go back far enough, the building department can retrieve archived records by request.