Home › Glossary › Authority Having Jurisdiction (AHJ)
The office — city, county, or regional body — that issues permits and enforces codes for a property.
The AHJ is whoever has legal authority over building work at an address: usually a city building department inside city limits, a county department outside them, sometimes a regional district. The United States has roughly 20,000 permit-issuing jurisdictions, which is why no permit product covers all of them on day one and why PermitBoards marks every market live, building, or waitlist instead of claiming otherwise.
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See it in real records: search the free permit lookup, or read how PermitBoards gets the data.
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