Commercial Building Permit (New Construction, Addition, Alteration & Tenant Improvement) in Rigby, Idaho

Rigby requires a commercial building permit (new construction, addition, alteration & tenant improvement) for: Building permit required for new commercial construction, commercial additions, and commercial alterations/remodels/tenant improvements within Rigby city limits — there is no separate tenant-improvement or commercial-remodel permit product; all route through the single 'Commercial – New Construction / Addition' Cityworks application category (Jefferson County 'Guide to Determine Building Permit Application Jurisdiction, Category, and Type'); COMMERCIAL PLANS (WHICH MUST INCLUDE A CODE ANALYSIS STATING OCCUPANCY CLASS) MUST BE DESIGNED AND STAMPED BY AN IDAHO LICENSED ARCHITECT — quoted directly from the Rigby-specific 'New Commercial & Addition Building Permit Application' help document; Plans must comply with the 2018 IBC and IFC per the same Rigby-specific help document (dated January 2, 2024) — note this predates the documented current-Idaho-State-Edition code adoption and the June 1, 2026 Jefferson County PZ&B HVAC takeover; confirm current edition/process status with Jefferson County PZ&B or Rigby City Hall before relying on the 2018-cycle figure for a new application; Register for and activate an account on the Jefferson County Cityworks public portal before applying; City of Rigby Zoning Certificate must be obtained/attached as a required document; Application data required: Description of Work, Type of Structure, Fire Sprinkler System Installed (and whether required), Occupancy Class, Construction Type, Designed Occupancy Load, Parcel Number, Parcel Size, City of Rigby Zoning, Location Address, Subdivision/Lot/Block (if applicable), flood zone status, square footage of all space types in the structure, height to top of gable, height to bottom of eave, distance eaves extend from structure, setbacks (N/E/W/S), distance from other buildings on the property, canal/irrigation information, Sewer Provider, Sewer Permit Number, Water Source, and Heat System; Site Plan showing all property lines, setbacks, easements, North arrow, new/existing structures with dimensions, driveway location, canals/rivers/roads, and parcel size; Recorded Warranty Deed; Idaho Contractor License (copy) attached; Engineered Truss Design and Truss Layout required as attachments; Water and Fire Suppression Plan required as an attachment for every commercial application (per the Rigby-specific help document's required-documents list), independent of whether a fire sprinkler system is ultimately installed; Per the help document form, all mechanical system(s) were to be 'permitted and inspected by the State of Idaho Division of Occupational and Professional Licenses' as of the form's January 2, 2024 date. Jefferson County PZ&B then took over new Mechanical (HVAC) permit processing and inspection for Rigby specifically, effective June 1, 2026 (see the residential building permit entry). Whether that later, Rigby-specific change also covers commercial HVAC applications, as opposed to residential only, is not published — confirm current routing with Jefferson County PZ&B (208-745-9220) or Rigby City Hall (208-745-8111) before applying; Access Permit from Jefferson County Public Works (county roads) or Idaho Transportation Department (state highways), if applicable; Septic Permit (approved) from Eastern Idaho Public Health if there is plumbing in the structure and the parcel cannot connect to City of Rigby sewer, or an EIPH authorization-to-connect letter if tying into an existing septic system; If in a mapped flood zone: Flood Plain Development Permit Application and Elevation Certificate; Written Consent from the property owner is a recommended attachment specifically 'if leasing the structure' — directly relevant to tenant-improvement projects performed by a commercial tenant rather than the property owner; All required attachments must be individually labeled PDF files uploaded through the Cityworks portal; Minimum 24 hours' notice required to schedule any inspection. If your project isn't listed, confirm with City of Rigby Building/Public Works Department (permit issuance & CO/CC) — building permit applications processed jointly with Jefferson County Planning, Zoning & Building under a Joint Powers Agreement at (208) 745-8111 before starting work.

In Rigby, the published Building permit fee — Total Valuation $1 to $500 is: $26.46. Additional published fees: Building permit fee — Total Valuation $501 to $2,000 — $26.46 for the first $500, plus $3.30 for each additional $100 or fraction thereof; Building permit fee — Total Valuation $2,001 to $40,000 — $75.96 for the first $2,000, plus $12.13 for each additional $1,000 or fraction thereof; Building permit fee — Total Valuation $40,000 to $100,000 — $536.90 for the first $40,000, plus $9.92 for each additional $1,000 or fraction thereof; Building permit fee — Total Valuation $100,001 to $500,000 — $1,132.10 for the first $100,000, plus $7.71 for each additional $1,000 or fraction thereof; Building permit fee — Total Valuation $500,001 to $1,000,000 — $4,216.10 for the first $500,000, plus $5.52 for each additional $1,000 or fraction thereof; Building permit fee — Total Valuation $1,000,001 to $5,000,000 — $6,976.10 for the first $1,000,000, plus $3.30 for each additional $1,000 or fraction thereof; Building permit fee — Total Valuation $5,000,001 and over — $20,176.10 for the first $5,000,000, plus $2.20 for each additional $1,000 or fraction thereof; Plan Review Fee — 15% of Building Permit Fee; GIS/Mapping Review Fee — $30.00 added to each application; Technology Fee — $30.00 added to each application; Inspection Fee — $90.00; Re-Inspection Fee — $90.00; Change of Occupancy — $150.00; Commercial Mechanical Permit — valuation $1 to $1,000 — $200.00; Commercial Mechanical Permit — valuation $1,001 to $10,000 — $200 for the first $1,000, plus $12.00 for each additional $1,000 or fraction thereof; Commercial Mechanical Permit — valuation $10,001 to $100,000 — $308.00 for the first $10,000, plus $11.00 for each additional $1,000 or fraction thereof; Commercial Mechanical Permit — valuation $100,001 and over — $1,298.00 for the first $100,000, plus $5.00 for each additional $1,000 or fraction thereof; Mechanical (Existing System) — modifying or replacing appliances/ducts/pipes — $100.00; Non-Residential Impact Fee — Sheriff (per square foot) — $0.01; Non-Residential Impact Fee — Roads and Bridges (per square foot) — $0.50; Non-Residential Impact Fee — Fire District (per square foot) — Central Fire District $0.04; Roberts Fire District $0.05; City of Rigby Water and Sewer Connection Fee — Amount not published on the city website or in the fee schedules reviewed. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Approximately 20 business days for a commercial building permit application, versus approximately 15 business days for a non-commercial (residential) application — both figures come directly from Jefferson County's 'Building Permit Process: Plan Submittal to CO Issuance' document, and the 20-business-day commercial figure is independently repeated in the Rigby-specific 'New Commercial & Addition Building Permit Application' help document.

You'll need: Rigby – New Commercial & Addition Building Permit Application – Help Information (Date of Form: January 2, 2024); Architect Stamped Commercial Plans (with Code Analysis / Occupancy Class); Engineered Truss Design; Truss Layout; Idaho Contractor License (copy); City of Rigby Zoning Certificate; Site Plan; Recorded Warranty Deed; Water and Fire Suppression Plan. Depending on your project, Rigby may also ask for: Septic Permit (or EIPH Authorization to Connect); Access Permit; Written Consent; Flood Plain Development Permit Application and Elevation Certificate. See the required-documents checklist on this page for details on each.

Rigby requires 13 inspection(s) for a commercial building permit (new construction, addition, alteration & tenant improvement), in order: Layout Inspection, Footing Inspection, Foundation Inspection, Sheathing Inspection, State/County Rough-In Inspections (Electrical, Plumbing, Mechanical/HVAC), Framing Inspection, Insulation Inspection, Drywall Inspection, Fire Suppression/Sprinkler Inspection (if installed or required), State Final Inspections (Electrical, Plumbing), Health Department Final, Final Inspection by Jefferson County Building Department, Certificate of Occupancy / Certificate of Completion Issuance (City of Rigby). Schedule each through City of Rigby Building/Public Works Department (permit issuance & CO/CC) — building permit applications processed jointly with Jefferson County Planning, Zoning & Building under a Joint Powers Agreement ((208) 745-8111).

Apply through City of Rigby Building/Public Works Department (permit issuance & CO/CC) — building permit applications processed jointly with Jefferson County Planning, Zoning & Building under a Joint Powers Agreement at 158 West Fremont Avenue, Rigby, ID 83442 (City Hall); building permit applications submitted via Jefferson County PZ&B, 210 Courthouse Way, Suite 170, Rigby, ID 83442. Phone: (208) 745-8111. Office hours: Mon–Fri, City Hall business hours; Jefferson County PZ&B Mon–Fri 9:00 AM – 5:00 PM. Official information: https://cityofrigby.gov/building-department/.

No. Jefferson County's Guide to Determine Building Permit Application Jurisdiction, Category, and Type lists only two commercial application types: Commercial - New Construction / Addition, and Commercial - Signs & Towers. There is no separate remodel or tenant improvement type on the commercial side, although the noncommercial category does have its own Basement Finish or Residential Remodel type. Submit a commercial alteration or tenant improvement in Rigby under the Commercial - New Construction / Addition application, using the same fees and requirements documented here.

Generally yes, unless the work falls within a narrow finish-work exemption. Jefferson County's 'Structures Requiring Building Permits' document states the adopted ICC codes require a permit for anyone who intends to 'construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure,' and separately lists 'painting, papering, tiling, carpeting, cabinets, counter tops, and similar finish work' as exempt from a building permit under both the residential (IRC) and commercial (IBC) exemption lists. The City of Rigby's own Building Department web page states in its own words: 'The City of Rigby requires a building permit to be issued for all construction, remodel or additions within the city limits.'