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Commercial Building Permit (New Construction) in Post Falls, Idaho

Required for new commercial construction, additions, and other structural work on non-residential buildings in Post Falls. Reviewed against the 2018 IBC as adopted, with valuation established per Occupancy Classification and Type of Construction (the City's Fee Schedule cites 'Building Safety Journal 7/2008' as its valuation-methodology source — i.e. the ICC's industry-standard building valuation data — rather than a flat city-published per-square-foot rate as used for residential). Commercial Plan Check/Review is billed at 65% of the Building Permit fee (vs. 25% for single-family/duplex/townhouse). Kootenai County Fire and Rescue (KCFR), a separate political subdivision independent of the City, bills separately for its own plan review and inspections on new commercial construction.

Verified 2026-08-02 · Source

When you need this permit

  • Building permit required for new commercial construction and additions; plans reviewed under the 2018 IBC as adopted by the City of Post Falls
  • Commercial valuation is established per Occupancy Classification and Type of Construction (per the Fee Schedule's 'Building Safety Journal 7/2008' methodology reference), not a flat city per-sq-ft rate; the resulting valuation is run through the same general Valuation Chart used citywide to calculate the Building Permit fee
  • One (1) set of all plans required: architectural, structural, mechanical, electrical, and plumbing; multi-family plans require a separate application and plan set for each building. Architectural and structural plans must be sealed by an Idaho-licensed professional
  • If not designed to the prescriptive provisions of the IBC, complete structural calculations addressing both vertical and lateral forces, stamped and signed by an Idaho-licensed engineer or architect, are required
  • One (1) set of specifications, sealed engineering calculations, COMcheck(s) (IECC commercial energy compliance), and truss sheets as required for the project
  • Kootenai County Fire and Rescue (KCFR) Fee Acknowledgement form required (digital fill-in available during online submittal; separate paper form for paper submittals only) — acknowledges that KCFR, a separate agency, bills the applicant directly and separately from the City
  • A Building Code Analysis must appear on the plan cover sheet (or be readily found elsewhere in the plans): codes designed under, project location/description, separated or nonseparated uses, occupancy classification (whole building or per area), number of stories, total building height, type of construction per the IBC, square footage per floor, maximum floor area permitted and basis for any area increase, occupant load per area, exits required per occupant load, fire/occupancy separations, plumbing fixtures required, list of required special inspections, and any deferred submittals
  • Architectural site plan (based on City-approved site plans, if applicable); exterior elevations showing finished grade lines, stairs, ramps, handrails, and building height
  • Foundation plan with cross sections of footings, pads, walls, reinforcement, anchor bolts, and sill plates (size, location, embedment depth, including hold-down devices/straps); concrete reinforcement grade, size, spacing, location, and bar count
  • Floor plans showing dimensions, room use/occupancy classification labels, bearing walls, fire walls, area/occupancy separation walls, and window/door dimensions, locations, and types
  • Floor framing details, roof framing plan (prefabricated truss plans, or ridge/rafter/ceiling-joist/purlin sizing for hand-framed roofs, with lumber type/grade/species), cross sections, braced wall/shear wall plans (panel type, location, fastener size/spacing, anchorage), and header/beam/column/post locations and sizes
  • Equipment Screening plans required per Post Falls Municipal Code 18.24.040 (Commercial and Industrial Performance Standards): roof- or wall-mounted mechanical equipment (A/C, elevator overruns, heating/ventilating units and ducting) must be screened from a horizontal line of sight, architecturally consistent with the building; ground-mounted equipment visible from a public right-of-way must be inset into building facades and/or screened with landscaping or low walls
  • New commercial buildings must have a Knox lock box installed per International Fire Code Section 506.1 (per KCFR); an electric gate additionally requires a Knox override switch — all KCFR requirements, including outstanding invoices, must be satisfied at least 30 days before KCFR will sign the Certificate of Occupancy
  • Site Plan Review (a separate Planning/Zoning fee, $2,000.00 per site) commonly applies alongside a Commercial Building Permit for new sites or major commercial projects
  • Apply online (preferred) through the Community Development Portal (postfallsid.portal.opengov.com); paper submittals require complete address (including suite number if applicable), parcel information, accurate description and valuation of work, and owner/contractor/architect/engineer information

Required documents

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Fee schedule

General Building Permit Valuation per Occupancy and Type of Construction (Commercial)City of Post Falls Fee Schedule, rev 10-1-2025. Resulting valuation is run through the general Valuation Chart below to calculate the Building Permit fee.
Established per Occupancy Classification and Type of Construction using the 'Building Safety Journal 7/2008' methodology referenced in the Fee Schedule (the ICC's historic building-valuation-data publication); no flat city per-sq-ft commercial rate is published
Building Permit Fee — valuation $1 to $500City of Post Falls Fee Schedule, rev 10-1-2025 (same citywide Valuation Chart used for residential and commercial)
$23.50
Building Permit Fee — valuation $501 to $2,000City of Post Falls Fee Schedule, rev 10-1-2025
$23.50 for the first $500 plus $3.05 for each additional $100, or fraction thereof
Building Permit Fee — valuation $2,001 to $25,000City of Post Falls Fee Schedule, rev 10-1-2025
$69.25 for the first $2,000 plus $14.00 for each additional $1,000, or fraction thereof
Building Permit Fee — valuation $25,001 to $50,000City of Post Falls Fee Schedule, rev 10-1-2025
$391.25 for the first $25,000 plus $10.10 for each additional $1,000, or fraction thereof
Building Permit Fee — valuation $50,001 to $100,000City of Post Falls Fee Schedule, rev 10-1-2025
$643.75 for the first $50,000 plus $7.00 for each additional $1,000, or fraction thereof
Building Permit Fee — valuation $100,001 to $500,000City of Post Falls Fee Schedule, rev 10-1-2025
$993.75 for the first $100,000 plus $5.60 for each additional $1,000, or fraction thereof
Building Permit Fee — valuation $500,001 to $1,000,000City of Post Falls Fee Schedule, rev 10-1-2025
$3,233.75 for the first $500,000 plus $4.75 for each additional $1,000, or fraction thereof
Building Permit Fee — valuation over $1,000,000City of Post Falls Fee Schedule, rev 10-1-2025
$5,608.75 for the first $1,000,000 plus $3.15 for each additional $1,000, or fraction thereof
Commercial Building Plan Check / Commercial Plan ReviewCity of Post Falls Fee Schedule, rev 10-1-2025. Listed under both the 'Building Plan Check (Paid at Plan Submittal)' table and the 'Building Permits' table; appears to be the same fee.
65% of the Building Permit fee
Site Plan Review (Commercial and 3-plex+)City of Post Falls Fee Schedule, rev 10-1-2025 (Zoning fee, separate from the Building Permit fee)
$2,000.00 per site (covers two reviews); $250.00 for additional reviews or meetings
Re-Roof, CommercialCity of Post Falls Fee Schedule, rev 10-1-2025
Based upon the valuation of the work to be performed, minimum $150.00 fee
Residing a Structure, CommercialCity of Post Falls Fee Schedule, rev 10-1-2025
Based upon the valuation of the work to be performed, minimum $100.00 Flat Fee
Foundation OnlyCity of Post Falls Fee Schedule, rev 10-1-2025
10% of the Building Permit fee, in addition to the full Building Permit fee
Work Performed with no valid permitCity of Post Falls Fee Schedule, rev 10-1-2025
Permit fee × 2 (double permit fee)
Non-Residential Impact Fees (per sq ft of floor area) — Commercial/Shopping CenterCity of Post Falls Fee Schedule, rev 10-1-2025
$1.30 Public Safety + $6.62 Streets + $1.43 Multimodal + $0.65 Fire + $0.10 EMS = $10.10 total per sq ft
Non-Residential Impact Fees (per sq ft of floor area) — OfficeCity of Post Falls Fee Schedule, rev 10-1-2025
$4.42 total per sq ft
Non-Residential Impact Fees (per sq ft of floor area) — Light Industrial / Manufacturing / Warehousing / Mini-WarehouseCity of Post Falls Fee Schedule, rev 10-1-2025
$2.64 / $2.26 / $1.45 / $1.37 total per sq ft, respectively
Non-Residential Impact Fees — HotelCity of Post Falls Fee Schedule, rev 10-1-2025
$3,129.04 per room (Public Safety + Streets + Multimodal) plus $0.75 per sq ft (Fire + EMS)
Water Capitalization Fee (Commercial, based on service line size from meter)City of Post Falls Fee Schedule, rev 10-1-2025
1" Commercial $5,463.00; 1½" $10,925.00; 2" $17,479.00; 3" $34,958.00; 4" $54,621.00; 6" $109,242.00; 8" $158,291.00
Sewer Capitalization Fee (Commercial/Industrial)City of Post Falls Fee Schedule, rev 10-1-2025
Minimum $7,621.00, plus an additional $7,621.00 for each 5,000 gallons of reclaimed water flow (based on water consumption) above the first 5,000 gallons per month
Commercial R-O-W Inspection (Base fee)City of Post Falls Fee Schedule, rev 10-1-2025
$350.00
Kootenai County Fire and Rescue (KCFR) Building Plan Review — SEPARATE AGENCY, not a City feeKCFR Fee Acknowledgement letter (Jeryl Archer, Fire Marshal). KCFR is a separate political subdivision of Idaho government, independent of the City of Post Falls; it bills the applicant directly. Fees collected by the City building department do NOT include KCFR's fees.
30% of the building permit fee, or $150.00, whichever is higher
Kootenai County Fire and Rescue (KCFR) Inspections — SEPARATE AGENCY, not a City feeKCFR Fee Acknowledgement letter. Covers automatic sprinkler installation inspections/testing, underground fuel tank pressure testing/delivery line tests, commercial kitchen hood tests, fire alarm tests/plan reviews, medical gas line testing, final inspection for occupancy, and any other on-site inspections required for new commercial construction.
$108.00 per hour (subject to change annually), one-hour minimum

Review timeline

Plan reviewPost Falls’s published plan-review target
20–20 business days

How long did your Commercial Building Permit (New Construction) permit actually take in Post Falls?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Foundation

    Before concrete pour — footing/foundation cross-sections, reinforcement, anchor bolts, and embedment depth per approved plans

  2. 2

    Framing

    Structural framing, braced wall/shear panels, and header/beam connections per approved plans

  3. 3

    Mechanical/Electrical/Plumbing Rough-In

    Ductwork, wiring, and piping rough-in before wall closure

  4. 4

    Fire/Life-Safety Inspections (Kootenai County Fire and Rescue)

    Automatic sprinkler installation, fire alarm testing, commercial kitchen hood tests, medical gas line testing, and other on-site inspections required for new commercial construction; billed separately by KCFR at $108.00/hour, one-hour minimum — not a City of Post Falls inspection

  5. 5

    Final

    All work complete per approved plans; City final inspection plus KCFR's final inspection for occupancy (KCFR must sign off before a Certificate of Occupancy issues, and all KCFR invoices must be paid at least 30 days prior)

See the full Post Falls inspection guide — scheduling & re-inspection fees →

Tips

  • Commercial building valuation is NOT a flat published $/sq ft rate like residential ($96.83/sq ft) — the Fee Schedule instead references 'Building Safety Journal 7/2008' as its methodology for establishing valuation by Occupancy Classification and Type of Construction, which is then run through the same citywide Valuation Chart.
  • Kootenai County Fire and Rescue (KCFR) is a SEPARATE agency from the City of Post Falls and bills applicants directly — budget separately for its plan review (30% of the building permit fee or $150.00 minimum) and inspections ($108.00/hour, one-hour minimum) on top of City permit fees.
  • New commercial buildings require a Knox lock box (and a Knox override switch if an electric gate is installed) per International Fire Code Section 506.1, and all KCFR fees/requirements must be satisfied at least 30 days before KCFR will sign the Certificate of Occupancy.
  • Commercial Plan Check/Review (65% of the Building Permit fee) is well above the 25% residential rate.
  • Non-residential impact fees are charged per square foot of floor area and vary substantially by use (e.g., $10.10/sq ft for Commercial/Shopping Center vs. $1.37/sq ft for Mini-Warehouse) — confirm the correct use category before estimating project cost.

Frequently asked questions

Post Falls requires a commercial building permit (new construction) for: Building permit required for new commercial construction and additions; plans reviewed under the 2018 IBC as adopted by the City of Post Falls; Commercial valuation is established per Occupancy Classification and Type of Construction (per the Fee Schedule's 'Building Safety Journal 7/2008' methodology reference), not a flat city per-sq-ft rate; the resulting valuation is run through the same general Valuation Chart used citywide to calculate the Building Permit fee; One (1) set of all plans required: architectural, structural, mechanical, electrical, and plumbing; multi-family plans require a separate application and plan set for each building. Architectural and structural plans must be sealed by an Idaho-licensed professional; If not designed to the prescriptive provisions of the IBC, complete structural calculations addressing both vertical and lateral forces, stamped and signed by an Idaho-licensed engineer or architect, are required; One (1) set of specifications, sealed engineering calculations, COMcheck(s) (IECC commercial energy compliance), and truss sheets as required for the project; Kootenai County Fire and Rescue (KCFR) Fee Acknowledgement form required (digital fill-in available during online submittal; separate paper form for paper submittals only) — acknowledges that KCFR, a separate agency, bills the applicant directly and separately from the City; A Building Code Analysis must appear on the plan cover sheet (or be readily found elsewhere in the plans): codes designed under, project location/description, separated or nonseparated uses, occupancy classification (whole building or per area), number of stories, total building height, type of construction per the IBC, square footage per floor, maximum floor area permitted and basis for any area increase, occupant load per area, exits required per occupant load, fire/occupancy separations, plumbing fixtures required, list of required special inspections, and any deferred submittals; Architectural site plan (based on City-approved site plans, if applicable); exterior elevations showing finished grade lines, stairs, ramps, handrails, and building height; Foundation plan with cross sections of footings, pads, walls, reinforcement, anchor bolts, and sill plates (size, location, embedment depth, including hold-down devices/straps); concrete reinforcement grade, size, spacing, location, and bar count; Floor plans showing dimensions, room use/occupancy classification labels, bearing walls, fire walls, area/occupancy separation walls, and window/door dimensions, locations, and types; Floor framing details, roof framing plan (prefabricated truss plans, or ridge/rafter/ceiling-joist/purlin sizing for hand-framed roofs, with lumber type/grade/species), cross sections, braced wall/shear wall plans (panel type, location, fastener size/spacing, anchorage), and header/beam/column/post locations and sizes; Equipment Screening plans required per Post Falls Municipal Code 18.24.040 (Commercial and Industrial Performance Standards): roof- or wall-mounted mechanical equipment (A/C, elevator overruns, heating/ventilating units and ducting) must be screened from a horizontal line of sight, architecturally consistent with the building; ground-mounted equipment visible from a public right-of-way must be inset into building facades and/or screened with landscaping or low walls; New commercial buildings must have a Knox lock box installed per International Fire Code Section 506.1 (per KCFR); an electric gate additionally requires a Knox override switch — all KCFR requirements, including outstanding invoices, must be satisfied at least 30 days before KCFR will sign the Certificate of Occupancy; Site Plan Review (a separate Planning/Zoning fee, $2,000.00 per site) commonly applies alongside a Commercial Building Permit for new sites or major commercial projects; Apply online (preferred) through the Community Development Portal (postfallsid.portal.opengov.com); paper submittals require complete address (including suite number if applicable), parcel information, accurate description and valuation of work, and owner/contractor/architect/engineer information. If your project isn't listed, confirm with City of Post Falls Community Development Department, Building Division at (208) 773-8708 before starting work.

Yes. Kootenai County Fire and Rescue (KCFR), a separate political subdivision independent of the City, bills separately for its own plan review (30% of the building permit fee or $150.00, whichever is higher) and inspections ($108.00/hour, one-hour minimum). The City also charges non-residential impact fees per square foot of floor area, plus water and sewer capitalization fees based on meter/service-line size. Source: City of Post Falls Fee Schedule, rev 10-1-2025; KCFR Fee Acknowledgement letter.

Post Falls's published plan-review target for a commercial building permit (new construction) is 20–20 business days.

You'll need: Building Permit Application; Commercial Building Permit Submittal Requirements; Construction Drawings; COMcheck(s); Kootenai County Fire and Rescue (KCFR) Fee Acknowledgement Form. See the required-documents checklist on this page for details on each.

Post Falls requires 5 inspection(s) for a commercial building permit (new construction), in order: Foundation, Framing, Mechanical/Electrical/Plumbing Rough-In, Fire/Life-Safety Inspections (Kootenai County Fire and Rescue), Final. Schedule each through City of Post Falls Community Development Department, Building Division ((208) 773-8708).

Apply through City of Post Falls Community Development Department, Building Division at 1st Floor of City Hall, 408 N Spokane St, Post Falls, ID 83854. Phone: (208) 773-8708, email: permits@postfalls.gov. Office hours: 8:00 a.m. to 5:00 p.m., Monday through Friday. Dedicated Building Inspections line: (208) 457-3334 — leave permit number, job address, inspection type, and desired inspection date; requests left after midnight the night before cannot be scheduled for the following day.. Official information: https://www.postfalls.gov/175/Building.

Post Falls, Idaho has adopted: Idaho has a mandatory statewide building code administered by the Idaho Division of Building Safety (DBS, now organizationally under the Division of Occupational and Professional Licenses / DOPL) under the Idaho Building Code Act, Idaho Code Title 39, Chapter 41, negotiated and adopted through the Idaho Building Code Board. Local jurisdictions that adopt and locally administer the code must enforce it at least as strictly as the state minimum; Post Falls administers its own Building Division for building, electrical, plumbing, and mechanical permitting within city limits. Source: City of Post Falls Current Adopted Codes and Design Criteria (Community Development Department, rev 02/16/25), https://www.postfalls.gov/DocumentCenter/View/750/Current-Codes-and-Design-Criteria-PDF; 2018 IBC (International Building Code), as adopted by the State of Idaho Building Code Board and locally administered by the City of Post Falls. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2018 IRC (International Residential Code), as adopted by the State of Idaho Building Code Board and locally administered by the City of Post Falls. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2018 IEBC (International Existing Building Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2018 IECC with 2012 Amendments for Residential (International Energy Conservation Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2018 IMC (International Mechanical Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2017 ISPC (Idaho State Plumbing Code) — Idaho's own state-amended plumbing code, not the Uniform or International Plumbing Code. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2018 IFGC (International Fuel Gas Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2023 NEC (National Electrical Code). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); ICC A117.1-2009 (Accessibility). Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); 2009 IPMC (International Property Maintenance Code), with amendments. Source: City of Post Falls Current Adopted Codes and Design Criteria (rev 02/16/25); The City of Post Falls Building Division directly issues and inspects electrical and plumbing permits within city limits (the Division's own permit-fee schedule lists dedicated Electrical Permits and Plumbing Permits fee tables administered by the City); this reflects local administration rather than direct-state DOPL/Division of Building Safety issuance for in-city work. Source: City of Post Falls Fee Schedule (Community Development Department, rev 10-1-2025), https://www.postfalls.gov/DocumentCenter/View/815/Fee-Schedule-PDF. Local amendments apply — see the Post Falls overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-08-02.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Post Falls building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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