Ada County, ID Building Safety: Building Inspections (2026)

Ada County adopted the 2018 International Building Code with local amendments at title 7, chapter 2, section 7-2-4 of the county code. 5, 'Expiration,' adds a second paragraph specific to Ada County: if work is not completed, the final inspection performed, and the project approved for occupancy or use within three years of the date the permit was issued, the permit expires by limitation and becomes null and void. Work cannot legally resume after that point without obtaining a brand-new permit. The county softens the cost of that reset only within a narrow window: a new permit obtained within one year of the original permit's expiration costs half of what a fresh permit for the remaining work would otherwise cost; wait past that one-year grace period and the full fee applies.

2, sets an earlier checkpoint before construction even starts: an application on which no permit is issued within 180 days of eligibility expires by limitation, though the building official can grant one 180-day extension on a showing that circumstances beyond the applicant's control caused the delay. 1. 1, and must be filed within 15 days of the decision per section 7-1-5(A).