Residential Building Permit (New Construction) in Ammon, Idaho

Ammon requires a residential building permit (new construction) for: Building permit required for new residential construction per the adopted 2018 IRC; Plans must comply with the 2018 IRC and 2018 IECC as adopted by the City of Ammon; Application, plan check, fire plan check, and planning/zoning plan check fees must be paid in full (100%) upon application submission; All required plans, engineering documents, and materials for the entire scope of work must be submitted and approved before permit issuance — partial (e.g., foundation-only) permits are not issued; Planning Department approval must be obtained prior to obtaining a building permit; Planning Department plan-check fee is assessed and collected by the Building Department at time of application; Fire Department approval must be obtained prior to obtaining a building permit; Fire Department plan-check fee is assessed per the Fire Department's separate fee schedule but collected by the Building Department at time of application; Submitted and tracked through the BluePrince online permitting portal. If your project isn't listed, confirm with City of Ammon Building Department at 208-612-4000 before starting work.

In Ammon, the published Building Permit Fee — valuation $1 to $500 is: $40.00 base fee. Additional published fees: Building Permit Fee — valuation $2,001 to $25,000 — $60.00 base fee for the first $2,001, plus $9.00 per additional $1,000; Building Permit Fee — valuation $25,001 to $50,000 — $100.00 base fee for the first $25,001, plus $7.50 per additional $1,000; Building Permit Fee — valuation $50,001 to $100,000 — $300.00 base fee for the first $50,001, plus $5.50 per additional $1,000; Building Permit Fee — valuation $100,001 and above — $480.00 base fee for the first $100,001, plus $3.50 per additional $1,000 (Section 1-A table lists $750.00 as the base fee at the $100,001 row; both figures appear in the published table — see source for exact row alignment); Residential Valuation — Residence Each Floor — $120.00 per square foot; Residential Valuation — Finished Basement — $25.00 per square foot; Residential Valuation — Unfinished Basement — $10.00 per square foot; Residential Valuation — Crawl Space — $5.00 per square foot; Residential Valuation — Deck — $5.00 per square foot; Residential Valuation — Covered Patio — $10.00 per square foot; Residential Valuation — Carport — $10.00 per square foot; Residential Valuation — Shed (no foundation/slab) — $15.00 per square foot; Residential Valuation — Garage/Shed (with foundation) — $21.00 per square foot; Building Code Plan Review Fee — Residential Projects — 10% of the Building Permit Fee; Planning and Zoning Code Review Fee — 10% of the Building Permit Fee; Hourly Rate (additional/unlisted work) — $60.00 per hour, one-hour minimum. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

The City of Ammon Building Department's own "Permits & Plan Review" listing states 5 working days for residential permits (versus 14 working days for commercial permits). A separate general page gives a blended estimate of "Typically 5-10 business days" across all permit types.

You'll need: BluePrince Residential/Commercial Building Permit Application; Complete Construction Documents. See the required-documents checklist on this page for details on each.

Ammon requires 6 inspection(s) for a residential building permit (new construction), in order: Footing, Foundation, Underground Plumbing, Framing, Insulation, Final. Schedule each through City of Ammon Building Department (208-612-4000).

Applications are submitted through the BluePrince online permitting portal (blueprinceportal.com), linked from the City's Building Permits service page. The Building Department is located at 2135 South Ammon Road.

Ammon, Idaho has adopted: City of Ammon Building Department adopts codes independently by ordinance under Ammon Municipal Code Title 07 (Building Regulations); the City self-administers building, electrical, plumbing, and mechanical permitting rather than relying on the Idaho Division of Building Safety for direct administration. Source: City of Ammon Building Department page, https://www.cityofammon.us/departments/building/; 2018 International Building Code (IBC), published by the International Code Council. Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IBC2018P6; 2018 International Residential Code (IRC) for One- and Two-Family Dwellings. Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IRC2018P6; 2018 International Existing Building Code (IEBC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IEBC2018P5; 2018 International Fire Code (IFC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IFC2018P6; 2018 International Fuel Gas Code (IFGC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IFGC2018/index; 2018 International Mechanical Code (IMC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/IMC2018P4; 2018 International Energy Conservation Code (IECC). Source: City of Ammon Building Department page, code link to https://codes.iccsafe.org/content/iecc2018; 2017 Idaho State Plumbing Code (based on the Uniform Plumbing Code, adopted statewide pursuant to Idaho Code Title 54, Chapter 26). Source: City of Ammon Building Department page; National Electrical Code (NEC) — City of Ammon Building Department page identifies the currently adopted edition as the 2023 NEC (NFPA 70), consistent with the edition adopted statewide by Idaho pursuant to Idaho Code Section 54-1001. Electrical permits within Ammon city limits are issued and inspected by the City's own Building Department. Source: City of Ammon Building Department page, code link to https://www.nfpa.org/codes-and-standards/nfpa-70-standard-development/70; Ammon Municipal Code Title 10, Chapter 7 (Planning and Zoning — Accessory Dwelling Units, Section 4) governs ADU standards enforced in conjunction with Building Department permitting. Source: City of Ammon ADU Regulations page, https://www.cityofammon.us/services/building-permits/adu-regulations/; Ammon Municipal Code Section 15.04.030 establishes stop-work-order and violation-fee authority for work commenced without a required building permit. Source: City Fee Resolution 2026-008 (Resolution Number 2026-008, adopted April 16, 2026, effective April 16, 2026), Section 1-B. Local amendments apply — see the Ammon overview page for the full list.