Multi-Family Residence / Commercial Building Permit in Rexburg, Idaho

Rexburg requires a multi-family residence / commercial building permit for: Building permit required for new multi-family residential and commercial construction; Plans reviewed against the 2018 IBC and 2018 IECC (Commercial) as adopted by the City of Rexburg; Commercial project plans must be stamped by a licensed Idaho architect or engineer; Multi-family fee estimate is based on R-2 Occupancy and Type VB Construction per the IBC Building Valuation table; Plan submittals must meet the City's Digital Plan Submission Standards (vector-based PDF, bookmarked pages, architect/engineer stamps, title sheet with square footage/occupancy group/construction type/scope of work); Create an account on the City's Public Portal (apply.rexburg.org/publicapp) to submit the application online. If your project isn't listed, confirm with City of Rexburg Building Department at (208) 372-2166 before starting work.

In Rexburg, the published Multi-Family Building Permit Fee (estimate) — 4-Plex, 3,600 sq ft is: $3,500.00. Additional published fees: Multi-Family Building Permit Fee (estimate) — 6-Plex, 6,000 sq ft — $5,200.00; Multi-Family Building Permit Fee (estimate) — 12-Plex, 12,000 sq ft — $8,700.00; Multi-Family Building Permit Fee (estimate) — 20-Unit, 20,000 sq ft — $13,100.00; Multi-Family Building Permit Fee (estimate) — 30-Unit, 30,000 sq ft — $18,700.00; Plan Review Fee — 10% of the calculated Building Permit fee; MEP Cost (per discipline: mechanical, electrical, plumbing) — 4 units + 1 building — $390.00; MEP Cost (per discipline) — 6 units + 1 building — $520.00; MEP Cost (per discipline) — 12 units + 1 building — $910.00; MEP Cost (per discipline) — 20 units + 1 building — $1,430.00; MEP Cost (per discipline) — 30 units + 1 building — $2,080.00; Water Meter — 3/4 inch — $732.00; Water Meter — 1 inch — $936.00; Water Meter — 1.5 inch, outside — $1,489.00; Water Meter — 1.5 inch, inside — $1,217.00; Water Meter — 2 inch, outside — $3,269.00; Water Meter — 2 inch, inside — $2,927.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Rexburg's published plan-review target for a multi-family residence / commercial building permit is Up to 10 business days.

You'll need: Apartment Buildings / Commercial Buildings Permit Application; Full Construction Drawing Set (stamped). See the required-documents checklist on this page for details on each.

Rexburg requires 10 inspection(s) for a multi-family residence / commercial building permit, in order: Layout & Footing, Foundation, Plumbing Underground, Sheeting, Plumbing / HVAC / Electrical Rough-In, Framing, Insulation, Drywall, Electrical / Plumbing / HVAC Final, Building Final. Schedule each through City of Rexburg Building Department ((208) 372-2166).

Apply through City of Rexburg Building Department at 35 N 1st East, Rexburg, ID 83440. Phone: (208) 372-2166, email: building@rexburg.org. Office hours: City Hall Open Hours: M-Th 7:30 am - 5:30 pm, F 7:30 am - 12:30 pm. Main City switchboard: (208) 359-3020; Building Department direct line: (208) 372-2166.. Official information: https://www.rexburg.org/o/cor/page/building.

Rexburg, Idaho has adopted: The City of Rexburg operates its own Building Department, which handles ALL trade permitting (building, mechanical, electrical, plumbing, and fire) in-house — it is not a DOPL-administered jurisdiction for permit issuance. The Building Official 'enforces and interprets the building code,' 'supervises the mechanical, electrical, plumbing, and fire inspectors,' and the Building Department's stated scope explicitly covers mechanical, electrical, and plumbing programs as sub-programs of the Building Department itself, each with dedicated per-discipline permit fees. Source: City of Rexburg Building page (rexburg.org/o/cor/page/building).; 2018 International Building Code (IBC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page (rexburg.org/o/cor/page/codes-standards).; 2018 International Residential Code (IRC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2023 National Electrical Code (NEC / NFPA 70), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page; also referenced on the Electrical Information page.; 2018 International Mechanical Code (IMC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2017 Idaho Plumbing Code (IAPMO), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Fuel Gas Code (IFGC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Energy Conservation Code (IECC) — both the Commercial and Residential chapters, adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Existing Building Code (IEBC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2018 International Fire Code (IFC), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; 2016 NFPA 72 (National Fire Alarm and Signaling Code), adopted by the City of Rexburg. Source: City of Rexburg Codes & Standards page.; Plans submitted for commercial projects must be stamped by a licensed Idaho architect or engineer. Source: City of Rexburg Codes & Standards page.; The permitting process takes up to 10 business days from initial application to issuance of the permit; the process can be longer depending on backlog; the permit process is on a first-come, first-served basis. Source: City of Rexburg Codes & Standards page.; Rexburg Development Code (Title/Code 1200) governs zoning, including short-term rental registration and duplex-conversion zoning eligibility (density-based lot-size minimums by zone). Source: Rexburg Development Code online, rexburg.municipalcodeonline.com/book?type=development.. Local amendments apply — see the Rexburg overview page for the full list.

This is addressed on the City's Building FAQ page, but the specific answer text is rendered as a JS-collapsed accordion not extractable as static text; generally, commercial project plans submitted to the City must be stamped by a licensed Idaho architect or engineer per the Codes & Standards page. Contact the Building Department at (208) 372-2166 to confirm any owner-design exceptions.