Administrative overview · FIPS 16043
Fremont 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
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Fremont County Planning and Building Department
For a project in or near Fremont 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
208-624-4643
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Fremont County Courthouse, 151 W. 1st North, St. Anthony, ID 83445; permit office address also listed as 125 N. Bridge Street
Operating hours
Operating hours not verified
Review expectation
Approximately 4-6 weeks to review and approve building plans when the application and attachments are complete. Permits are valid for two years; an approved application expires if the permit is not obtained within 180 days.
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 Fremont County
Who handles permitting for this jurisdiction?
Fremont County Planning and Building Department is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
No verified online portal was located in the reviewed public materials. Contact 208-624-4643 and request the current application route before preparing a final submittal.
How long might review take?
Approximately 4-6 weeks to review and approve building plans when the application and attachments are complete. Permits are valid for two years; an approved application expires if the permit is not obtained within 180 days.
How are inspections scheduled?
N/A; the current application/checklist covers plan submittal and final occupancy but does not publish a separate inspection-booking phone or timetable.
Which codes and exemptions should I review?
2018 International Residential Code, 2018 International Building Code, and 2018 International Energy Conservation Code; Fremont County administers these requirements except within St. Anthony city limits. The county's exemption handout lists detached accessory sheds/playhouses under 200 sq. ft. with no habitation, plumbing, or electricity; fences up to 6 feet; retaining walls up to 4 feet unless supporting surcharge; qualifying water tanks; sidewalks/driveways; painting, papering, tiling, siding, carpeting, cabinets, countertops and similar finish work; shallow prefabricated pools; playground equipment; qualifying wall-supported awnings; and re-roofing up to two layers. Structural modifications still require permits.