Kansas City Building Permit Lookup
Search 1,528,478 Kansas City Development Services records covering 1902 to 2026. See what was filed, who filed it, and what was never closed out.
Searching in Kansas City, Missouri · Street address only, no city or state
Navigating the Kansas City permit registry
Building permits in Kansas City are public records. Every renovation, addition and structural change that went through the proper process left a filing with Kansas City Development Services, and the gaps in that record are often more revealing than the filings themselves.
We pull directly from Kansas City Development Services, whose published records begin in 1902 and now run to 1,528,478 permits. That includes building work alongside the trade permits — electrical, mechanical and plumbing — that carry most of a house's renovation history. You can verify any permit at the source.
Work started without a permit, or started under one that was never closed out, can surface at the worst possible moment: during an appraisal, at closing, or when you make an insurance claim. A permit that shows as open or expired years after the work finished is the signal worth chasing.
Across Kansas City's whole record, 1,109,820 permits closed out properly, 329,538 are still open, and 86,669 expired without ever being finaled.
Use Cases
Most filed in Kansas City
- Excavation290,836
- Electrical (Residential)193,328
- Plumbing (Residential)105,384
- Traffic Control102,538
- Building (Residential)95,832
- Mechanical (Residential)88,950
Source
- Authority
- Kansas City Development Services
- Feed
- Socrata
- Index refreshed
- September 2026
- Typical review
- ~18 days
Kansas City Permit Registry FAQ
How far back do the records go?
Kansas City's published permit records begin in 1902 and run through 2026. Work done before then will not appear here, even if it was properly permitted at the time.
How many permits are in the database?
1,528,478 for Kansas City, pulled from Kansas City Development Services over Socrata. Our index was last refreshed in September 2026.
Are these records official?
Yes. Every permit shown comes from Kansas City Development Services through its public data feed. We reformat the records, we do not create them.
Can I see which permits are still open?
Yes. Of the 1,528,478 permits on file, 1,109,820 closed out properly, 329,538 remain open and 86,669 expired without ever being finaled. Expired is usually the more serious of the two.
What if I find work without a permit?
Unpermitted work is common and usually negotiable before closing. Get a contractor's estimate for bringing it into compliance, and raise it with the seller while you still have leverage.
Does every minor repair need a permit?
Most cosmetic work does not. Anything structural, electrical or plumbing almost always requires a filing, which is why those are the gaps worth checking.
How current is the data?
We query Kansas City Development Services's feed directly at search time. How fresh that feed is depends on the department, and some publish on a lag of days. The most recent permit in our Kansas City index was issued 2026.
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Searching in Kansas City, Missouri · Street address only, no city or state