Building Permits in Idaho Falls, ID

Check permit requirements for home improvement projects in Idaho Falls. Select a project type below to see local requirements, estimated fees, and how to apply.

109 Permit Rules

28 Project Types

$25 – $3,500 Permit Fee Range →

IRC 2018 Building Code

Key Exemptions in Idaho Falls

These projects typically don't require a building permit in Idaho Falls:

Cosmetic bathroom updates without electrical or plumbing changes do not require a permit.

Small at-grade patio slabs under 120 square feet are typically exempt from building permits per IRC R105.2 (extended via local amendment). The slab must be at-grade (not more than 30 inches above adjacent grade) and not part of an accessible route.

Freestanding decks not more than 30 inches above grade are exempt from a building permit.

Replacing an existing driveway in the same footprint with no changes to the curb cut is generally exempt from permit requirements.

Replacing a light fixture or outlet with the same type does not require a permit.

See all rules by selecting a project type below, or use our free lookup tool for a personalized answer.

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Get a personalized answer

Our lookup tool asks a few questions about your specific project to give you the most accurate answer.

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Idaho Falls Building Department

NameCity of Idaho Falls Building Division

Phone(208) 612-8270

WebsiteVisit website

Address380 Constitution Way, Idaho Falls, ID 83402

HoursMon-Fri 8am-5pm

Nearby Cities in Idaho

Boise Meridian Nampa Caldwell Pocatello Coeur d'Alene Twin Falls Post Falls

Permit Guides

Read our in-depth guides for common home improvement projects:

Deck Guide Fence Guide Shed Guide Roof Guide Window & Door Guide Bathroom Guide Kitchen Guide Pool Guide Electrical Guide Plumbing Guide HVAC Guide Garage Guide Addition Guide Basement Guide Retaining Wall Guide Solar Guide Patio Guide ADU Guide Driveway Guide Demolition Guide EV Charger Guide Generator Guide Gas Line Guide Water Heater Guide Tree Removal Guide Siding Guide Fireplace Guide Concrete Slab Guide

Disclaimer: Always confirm with your local building department before starting your project. PermitMint provides general guidance, not legal advice.