jaspector
§ OH Williams County
County building permits

Unincorporated Williams County

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

Min. permit fee
$25 for county building notice
Last verified
April 2026
On this page 6
§ 01

Permit authority

Williams County Auditor, Building Notices / New Construction

Street address
One Courthouse Square, Bryan, OH 43506
Phone
419-636-5639
Coverage
Persons living outside a municipality in Williams County, plus County-administered building notice coverage where applicable
§ 02

When a permit is required

Permit triggers and exempt work for Williams County

structural improvements or buildings costing more than $2,000, per ORC 5713.17 notice requirement

Roofs without pitch changes
Heating source
Handicap ramp
Above-ground pools
Residential driveway
Residential solar panels
Fences
  • Exempt Roofs without pitch changes
  • Exempt Heating source
  • Exempt Handicap ramp
  • Exempt Above-ground pools
  • Exempt Residential driveway
  • Exempt Residential solar panels
  • Exempt Fences
Required documents
  • building notice application, estimated cost, property description, and any related county or township zoning, flood plain, sewer, driveway, health, and address assignment documentation
Building code
state Ohio Building Code governs where applicable, but county building notice is not itself a code inspection permit
§ 03

Application process

Application → plan check → issuance → inspection → final

  1. 01
    Determine whether the work requires a county building notice.
  2. 02
    For residential construction, follow the county instructions for flood plain review, zoning or township zoning, health department septic or well permits, county sewer or driveway permits, emergency house numbering, and then the building notice at the Auditor's office.
  3. 03
    Submit the building notice at the Auditor's office, 2nd floor of the courthouse.
  4. 04
    County issues the notice for tax tracking purposes only; it is not an inspection permit.
§ 04

Fee schedule

Williams County building permit fees

Fee type
Amount
01
Minimum permit fee
$25 for county building notice
02
Permit fee formula
$25 standard notice fee; under $2,000 construction cost, notice issued at no cost

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

§ 05

Required inspections

Scheduling and sequence

Typical sequence: county building notice comes after related zoning, flood plain, septic, sewer, driveway, and address steps where applicable

§ 06

Frequently asked

Common questions about unincorporated Williams County permits

01 Do I need a building permit in unincorporated Williams County, OH? ▸
structural improvements or buildings costing more than $2,000, per ORC 5713.17 notice requirement
02 How much does a building permit cost in unincorporated Williams County, OH? ▸
Building permit fees in unincorporated Williams County, OH are set by the local building department and vary by project type and valuation. The minimum permit fee is $25 for county building notice. Fees are calculated as: $25 standard notice fee; under $2,000 construction cost, notice issued at no cost.
03 How do I apply for a building permit in unincorporated Williams County, OH? ▸
To apply for a building permit in unincorporated Williams County, OH, follow these steps: 1. Determine whether the work requires a county building notice. 2. For residential construction, follow the county instructions for flood plain review, zoning or township zoning, health department septic or well permits, county sewer or driveway permits, emergency house numbering, and then the building notice at the Auditor's office. 3. Submit the building notice at the Auditor's office, 2nd floor of the courthouse. 4. County issues the notice for tax tracking purposes only; it is not an inspection permit.
04 What work is exempt from building permits in unincorporated Williams County, OH? ▸
Not all construction work requires a permit in unincorporated Williams County, OH. The following work is generally exempt: Roofs without pitch changes; Heating source; Handicap ramp; Above-ground pools; Residential driveway; Residential solar panels; Fences. When in doubt, confirm with the local building department before starting work.
last verified April 2026 entry id permits/ohio/williams/unincorporated
Report a correction

Educational reference. Permit rules and fees change — confirm current requirements directly with Williams County Auditor, Building Notices / New Construction before applying. Jaspector is not legal advice.

← Back to Williams County permit guides