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Commercial Building Permit in Plummer, Idaho

Required for new commercial building construction within the incorporated City of Plummer. Permits are issued through the same generic City of Plummer Utility Work Permit/Plan Review Application used for residential work — the applicant checks the 'IB' (International Building Code) box on the Plan Checked field rather than 'IRC', and completes Occupancy Group, Type of Construction, and Max Occupant Load fields specific to commercial plan review. There is no separate, dedicated commercial-only application. Declared valuation for new commercial construction is established from the ICC Building Valuation Data table (2006 International Building Code occupancy groups A-1 through U, by construction type), published in the City's Rate Book, which then feeds the same 1997 Uniform Building Code valuation-based fee table used for residential permits, plus the City's 25% surcharge (Plummer follows Benewah County's building valuation fee schedule because the County currently provides the City's building inspector).

Reviewed 2026-08-02 · Source

When you need this permit

  • Required for new commercial building construction within Plummer city limits
  • Application submitted to and issued through Plummer City Hall (880 C Street) — the same generic Building Permit/Plan Review Application used for residential permits; the applicant checks the 'IB' (International Building Code) box under Plan Checked rather than 'IRC'
  • Application includes Occupancy Group, Type of Construction, Size (sq ft), Max Occupant Load, and a Fire Sprinklers Required yes/no field — these are part of the single combined application form, not a separate commercial-only document
  • Declared valuation for new construction is established using the ICC Building Valuation Data table (2006 IBC occupancy groups A-1 through U, by construction type 1A-5B), published in the City's Rate Book (March 2026)
  • Completed application must be sent to rhi@cityofplummer.org
  • Design must meet City-adopted design criteria: Seismic Zone C, 24-inch minimum frost depth, 90 mph basic wind speed, 60 PSF minimum roof snow load
  • Separate permits are required for electrical, plumbing, HVAC, and sewer work (these trades are administered by Idaho DOPL, not the City, per the same application form used for residential work)
  • Site Plan is required per the application's Special Approvals Required section; Survey/Pin Locate, Water, Sewer, Elevation Certificate, Hwy Encroachment, Fire Dept, and Dike District approvals may also be checked as applicable

Required documents

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Fee schedule

Building Permit — valuation $1 to $500Plummer Rate Book (March 2026), 1997 Uniform Building Code fee table — this single valuation-based table applies to all building classes (residential and commercial alike), plus the City's 25% surcharge ('The City of Plummer assesses a 25% fee in addition to these amounts').
$23.50
Building Permit — valuation $501 to $2,000Plummer Rate Book (March 2026)
$23.50 for the first $500, plus $3.05 for each additional $100 or fraction thereof, plus City's 25% surcharge
Building Permit — valuation $2,001 to $25,000Plummer Rate Book (March 2026)
$69.25 for the first $2,000, plus $14 for each additional $1,000 or fraction thereof, plus City's 25% surcharge
Building Permit — valuation $25,001 to $50,000Plummer Rate Book (March 2026)
$391.25 for the first $25,000, plus $10.10 for each additional $1,000 or fraction thereof, plus City's 25% surcharge
Building Permit — valuation $50,001 to $100,000Plummer Rate Book (March 2026)
$643.75 for the first $50,000, plus $7 for each additional $1,000 or fraction thereof, plus City's 25% surcharge
Building Permit — valuation $100,001 to $500,000Plummer Rate Book (March 2026)
$993.75 for the first $100,000, plus $5.60 for each additional $1,000 or fraction thereof, plus City's 25% surcharge
Building Permit — valuation $500,001 to $1,000,000Plummer Rate Book (March 2026) — the residential entry omits this bracket since typical dwellings stay under $500,000, but it is directly relevant to larger commercial projects
$3,233.75 for the first $500,000, plus $4.72 for each additional $1,000 or fraction thereof, plus City's 25% surcharge
Building Permit — valuation $1,000,001 and greaterPlummer Rate Book (March 2026) — top tier of the same fee table; commercial new-construction valuations are more likely to reach this bracket than typical residential projects
$5,608.75 for the first $1,000,000, plus $3.65 for each additional $1,000 or fraction thereof, plus City's 25% surcharge
New commercial construction — valuation basis (ICC Building Valuation Data, by occupancy group & construction type)Plummer Rate Book (March 2026), 'BUILDING VALUATION DATA — As published by the International Code Council,' keyed to 2006 IBC occupancy groups A-1 through U and construction types 1A/1B/2A/2B/3A/3B/4/5A/5B; the applicable $/sq ft depends on the project's specific occupancy classification and construction type. This valuation then feeds the 1997 UBC fee table above.
Examples read directly from the Rate Book's Building Valuation Data table: B Business ranges from $104.41/sq ft (Type VB / 5B) to $152.75/sq ft (Type IA / 1A); M Mercantile ranges from $73.26/sq ft (5B) to $109.31/sq ft (1A); S-1 Storage, moderate hazard ranges from $48.93/sq ft (5B) to $84.25/sq ft (1A)

Review timeline

Plan review
Not published — contact the department

How long did your Commercial Building Permit permit actually take in Plummer?

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

Inspection process

  1. 1

    Footings / Poles

    Before concrete pour or pole placement — foundation/footing verification. Listed on the same generic inspection log printed on the combined application form used for both residential and commercial permits.

  2. 2

    Framing

    After framing complete, before insulation or wall cover

  3. 3

    Insulation

    Insulation installed before drywall/sheetrock

  4. 4

    Drywall / Sheet Rock

    Drywall/sheetrock stage inspection per the City's inspection log

  5. 5

    Final Inspection

    All work complete per approved plans. The application form's inspection log has only these five printed stages plus a blank 'Other' line — commercial occupancies with fire sprinklers, ADA/accessibility, or other life-safety scope should confirm with City Hall/the Fire Dept whether additional inspections apply beyond this generic list.

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

Tips

  • There is no separate commercial-only permit application — the same combined City of Plummer Utility Work Permit/Plan Review Application is used for residential and commercial work; check 'IB' (International Building Code) rather than 'IRC' under Plan Checked.
  • Valuation for new commercial construction is established via the ICC Building Valuation Data table (by 2006 IBC occupancy group and construction type), not a flat commercial rate — the $/sq ft figure varies substantially by occupancy classification (e.g., Business vs. Mercantile vs. Storage) and construction type.
  • The same City 25% surcharge on top of the County-derived fee table applies to commercial permits exactly as it does to residential permits.
  • The application's Fire Sprinklers Required and Fire Dept approval fields flag that life-safety plan review is expected for qualifying commercial occupancies, though no separate fire-plan-review fee line is published in the Rate Book.
  • No commercial-specific expedited review track or separate fee schedule exists as of this entry's verification date.

Frequently asked questions

Plummer requires a commercial building permit for: Required for new commercial building construction within Plummer city limits; Application submitted to and issued through Plummer City Hall (880 C Street) — the same generic Building Permit/Plan Review Application used for residential permits; the applicant checks the 'IB' (International Building Code) box under Plan Checked rather than 'IRC'; Application includes Occupancy Group, Type of Construction, Size (sq ft), Max Occupant Load, and a Fire Sprinklers Required yes/no field — these are part of the single combined application form, not a separate commercial-only document; Declared valuation for new construction is established using the ICC Building Valuation Data table (2006 IBC occupancy groups A-1 through U, by construction type 1A-5B), published in the City's Rate Book (March 2026); Completed application must be sent to rhi@cityofplummer.org; Design must meet City-adopted design criteria: Seismic Zone C, 24-inch minimum frost depth, 90 mph basic wind speed, 60 PSF minimum roof snow load; Separate permits are required for electrical, plumbing, HVAC, and sewer work (these trades are administered by Idaho DOPL, not the City, per the same application form used for residential work); Site Plan is required per the application's Special Approvals Required section; Survey/Pin Locate, Water, Sewer, Elevation Certificate, Hwy Encroachment, Fire Dept, and Dike District approvals may also be checked as applicable. If your project isn't listed, confirm with City of Plummer Planning, Zoning & Building Department at (208) 686-1641 before starting work.

The City's Rate Book (March 2026) directs 'all other occupancies' to the ICC Building Valuation Data table, which gives a $-per-square-foot construction cost figure based on the 2006 IBC occupancy group (e.g., B Business, M Mercantile, S-1 Storage) and construction type (Type IA through VB). That figure, multiplied by square footage, becomes the declared valuation, which is then run through the same 1997 Uniform Building Code fee table used for residential permits, plus the City's 25% surcharge.

Plummer does not publish a plan-review timeline for this permit. Contact City of Plummer Planning, Zoning & Building Department at (208) 686-1641 for current turnaround.

You'll need: City of Plummer Building Permit Application; Construction Drawings / Site Plan. Depending on your project, Plummer may also ask for: Survey / Property Pin Locate. See the required-documents checklist on this page for details on each.

Plummer requires 5 inspection(s) for a commercial building permit, in order: Footings / Poles, Framing, Insulation, Drywall / Sheet Rock, Final Inspection. Schedule each through City of Plummer Planning, Zoning & Building Department ((208) 686-1641).

Apply through City of Plummer Planning, Zoning & Building Department at 880 C Street, P.O. Box B, Plummer, ID 83851. Phone: (208) 686-1641, email: rhi@cityofplummer.org. Office hours: Monday–Friday, 9:00 AM – 5:00 PM (closed federally recognized holidays); after-hours line (208) 755-2573. Official information: https://www.cityofplummer.org/planning-zoning-building.

Plummer, Idaho has adopted: 2018 International Building Code (IBC), with Idaho amendments; 2018 International Residential Code (IRC), Parts I, II, III and IX, with Idaho amendments — collectively named the Idaho Residential Code (2020 Edition); 2018 International Energy Conservation Code (IECC), with Idaho amendments — collectively named the Idaho Energy Conservation Code (2020 Edition); 2018 International Existing Building Code (IEBC); 2018 International Mechanical Code (IMC) — state-administered via Idaho DOPL, not city-issued; 2018 International Fuel Gas Code (IFGC) — state-administered via Idaho DOPL, not city-issued; 2018 International Residential Code Parts V and VI (mechanical/fuel gas) — state-administered via Idaho DOPL; 2017 Idaho State Plumbing Code, based on the 2015 Uniform Plumbing Code — state-administered via Idaho DOPL, not city-issued; 2023 National Electrical Code (NEC), with Idaho amendments — state-administered via Idaho DOPL, not city-issued; 2018 International Fire Code (IFC) — administered by the Idaho State Fire Marshal. Local amendments apply — see the Plummer overview page for the full list.

No. Plummer uses a single combined 'City of Plummer Utility Work Permit/Plan Review Application' for all classes of work. For a commercial project, the applicant checks the 'IB' (International Building Code) box under Plan Checked instead of 'IRC', and fills in the Occupancy Group, Type of Construction, and Max Occupant Load fields printed on that same form.

Sources & verification

Key facts 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 Plummer building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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