Administrative overview · FIPS 18129
Posey County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
Municipal Fallback
This profile identifies a handoff outside the county’s ordinary structural permitting lane.
Required jurisdiction check
Confirm the controlling local or state authority before filing.
The record is marked Municipal Fallback. That means the county profile should be treated as a routing brief: incorporated municipalities, a state building department, or a state fire marshal may control plan review, permits, and inspections. Contact the named agency below and verify the parcel’s jurisdiction before paying a fee or scheduling field work.
Responsible agency
Posey County Building Commission / Area Plan Commission
For a project in or near Posey County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
812-838-1324 (Building Commissioner); 812-838-1323 (Area Plan Commission)
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
126 East Third Street, Room 132, Mt. Vernon, IN 47620
Operating hours
Monday-Friday 8:00 a.m.-4:00 p.m.
Review expectation
Ask the agency for its current review estimate
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Posey County
Who handles permitting for this jurisdiction?
This record is marked Municipal Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 812-838-1324 (Building Commissioner); 812-838-1323 (Area Plan Commission).
How long might review take?
A typical review timeline was not verified. Ask the agency for its current completeness and review estimate.
How are inspections scheduled?
Call 812-838-1324 at least 24 hours in advance when possible and provide the site address, owner name, work to be inspected, and permit number. Required inspections include footings, foundation, underground utilities, rough framing, insulation, and final inspection; a Certificate of Occupancy is required before residential or commercial occupancy. The portal supports inspection requests and status tracking.
Which codes and exemptions should I review?
Posey County building, plumbing, electrical, mechanical, structural, and zoning requirements under county/state authority; a specific current 2026 technical edition was not identified. The cities of Mt. Vernon, New Harmony, Poseyville, and Griffin have separate building authority within their city limits. For building permits, the county fee schedule states that agricultural buildings on farms of at least 50 acres and church buildings are exempt from permit fees, but proper permits are still required. An Improvement Location Permit may not be necessary for improvements that do not change the existing building footprint; verify with Area Plan.