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County building permits

Unincorporated Simpson County

How to apply for a building permit in unincorporated Simpson County, Kentucky. Permit authority, application steps, fees, and inspection requirements.

Min. permit fee
$30
Last verified
April 2026
On this page 6
§ 01

Permit authority

Franklin-Simpson Planning & Zoning Commission

Street address
100 Courthouse Sq, Franklin, KY 42134
Coverage
All unincorporated properties within Simpson County. Simpson County unincorporated permits are handled through the same inspector and commission, but the county packet requires forms tied to the health department, county water, Warren Rural Electric, and road connections.
Online portal
PermitsOnline
PermitsOnline (WindoWare)
§ 02

When a permit is required

Permit triggers and exempt work for Simpson County

No excavation, construction, additions, structural alterations, or relocations may start before the inspector issues a permit, with exceptions for agricultural, utility, and pre-approved subdivision work.

Recurring maintenance
Uses exempted explicitly in the zoning regulations
Installation of improvements already approved on a subdivision plat
Agricultural or public utility excavation or work within an approved subdivision
  • Exempt Recurring maintenance
  • Exempt Uses exempted explicitly in the zoning regulations
  • Exempt Installation of improvements already approved on a subdivision plat
  • Exempt Agricultural or public utility excavation or work within an approved subdivision
Required documents
  • Scaled site and building plan
  • Documentation of lot and building dimensions
  • Intended uses and yard depths
  • Easements and utility locations
  • Health officer certificate for utilities
  • State plumbing permit
  • County utility forms (Simpson County Health Department, Simpson County Water Service, Warren Rural Electric, phone service)
  • State and county road connection documentation
  • Contractor information form with license and bond data
Building code
Kentucky Residential Code (2013 edition) and Kentucky Building Code Regulation
Permit validity
180 days without substantial progress. Renewal after six months carries a $30 renewal fee.
Owner-builder
Property owners may file directly and use the homeowner waiver provided on the application.
Contractor requirements
Contractors supplying services in the county fill in license, bond, and contact information on the multi-trade application. State inspectors review electrical, HVAC, and plumbing work.

Source: Franklin-Simpson Planning & Zoning Commission ↗

§ 03

Application process

Typical processing: Two weeks from submission for administrative official review.

  1. 01
    Assemble a scaled plan showing lot dimensions, existing and proposed building footprints, uses, yard depths, easements, and utility locations.
  2. 02
    Obtain county-specific utility forms from Simpson County Health Department, Simpson County Water Service, Warren Rural Electric, and phone service.
  3. 03
    Secure documentation of state and county road connections and a state plumbing permit.
  4. 04
    Complete the contractor information form (county version does not require business license numbers but captures contractor, electrician, HVAC, and plumbing license and bond details).
  5. 05
    Submit the application to the administrative official via the portal or office for review.
  6. 06
    The administrative official reviews for compliance and acts within two weeks, providing written reasons if the project fails to comply.
  7. 07
    Upon compliance confirmation, the permit is issued, and inspections plus the certificate of occupancy follow.

Typical processing time: Two weeks from submission for administrative official review.

Source: Franklin-Simpson Planning & Zoning Commission ↗

§ 04

Fee schedule

Simpson County building permit fees

Fee type
Amount
01
Minimum permit fee
$30
02
Permit fee formula
One- and two-family projects: $0.12 per square foot (plus $0.03 per unfinished basement square foot); accessory buildings: $0.07 per square foot (minimum $30); commercial/industrial: 0.4% for first $500,000, down to 0.05% over $2,000,000 (minimum $75 per project)
03
Reinspection fee
$75 mileage fee per inspection; doubled fees for starting without a permit
04
Penalty (no permit)
Doubled fees for starting construction without a permit

Contact the Planning & Zoning office after portal submission for the invoice and payment instructions.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

How to schedule
Scheduling deadline
Call 24 hours in advance to request an inspection.
Inspection hours
Monday-Friday, 8:00 AM to 4:00 PM

Typical sequence: Typical sequence: footings, foundation, framing, then final inspections. Final inspection must pass before occupancy.

Source: Franklin-Simpson Planning & Zoning Commission ↗

§ 06

Frequently asked

Common questions about unincorporated Simpson County permits

01 Do I need a building permit in unincorporated Simpson County, KY?
No excavation, construction, additions, structural alterations, or relocations may start before the inspector issues a permit, with exceptions for agricultural, utility, and pre-approved subdivision work.
02 How much does a building permit cost in unincorporated Simpson County, KY?
Building permit fees in unincorporated Simpson County, KY are set by the local building department and vary by project type and valuation. The minimum permit fee is $30. Fees are calculated as: One- and two-family projects: $0.12 per square foot (plus $0.03 per unfinished basement square foot); accessory buildings: $0.07 per square foot (minimum $30); commercial/industrial: 0.4% for first $500,000, down to 0.05% over $2,000,000 (minimum $75 per project).
03 How do I apply for a building permit in unincorporated Simpson County, KY?
To apply for a building permit in unincorporated Simpson County, KY, follow these steps: 1. Assemble a scaled plan showing lot dimensions, existing and proposed building footprints, uses, yard depths, easements, and utility locations. 2. Obtain county-specific utility forms from Simpson County Health Department, Simpson County Water Service, Warren Rural Electric, and phone service. 3. Secure documentation of state and county road connections and a state plumbing permit. 4. Complete the contractor information form (county version does not require business license numbers but captures contractor, electrician, HVAC, and plumbing license and bond details). 5. Submit the application to the administrative official via the portal or office for review. 6. The administrative official reviews for compliance and acts within two weeks, providing written reasons if the project fails to comply. 7. Upon compliance confirmation, the permit is issued, and inspections plus the certificate of occupancy follow.
04 How long does it take to get a building permit in unincorporated Simpson County, KY?
Building permit processing times in unincorporated Simpson County, KY typically run Two weeks from submission for administrative official review.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in unincorporated Simpson County, KY?
Not all construction work requires a permit in unincorporated Simpson County, KY. The following work is generally exempt: Recurring maintenance; Uses exempted explicitly in the zoning regulations; Installation of improvements already approved on a subdivision plat; Agricultural or public utility excavation or work within an approved subdivision. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in unincorporated Simpson County, KY?
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Simpson County, KY via: Call 24 hours ahead with lot or address details, InspectNet portal for scheduling or canceling. Call 24 hours in advance to request an inspection..
last verified April 2026 source Franklin-Simpson Planning & Zoning Commission ↗ entry id permits/kentucky/simpson/unincorporated

Educational reference. Permit rules and fees change — confirm current requirements directly with Franklin-Simpson Planning & Zoning Commission before applying. Jaspector is not legal advice.