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Commercial Tenant Improvement (TI) / Remodel Permit in Cascade, Idaho

Required for alteration, remodel, or fit-out of existing commercial/business-occupancy space within the City of Cascade. The City has no dedicated 'tenant improvement' permit product, application, or fee line -- a commercial TI is processed as an 'alteration' under the same general Building Permit statute (City Code 2-1-4, 2-1-12) and Cascade Building Code (2018 IBC) that governs new commercial construction, using the same application form and plan-review surcharge. Whether the Fire District Impact Fee applies to a TI that does not add floor area is not confirmed by any published source (see fee notes below).

Reviewed 2026-08-02 · Source

When you need this permit

  • Falls under the City Code 2-1-4 definition of 'CONSTRUCTION': 'the erection, fabrication, reconstruction, demolition, alteration, conversion, or repair of a building (other than in-kind)' -- a permit is required per City Code 2-1-12(A) before any such work begins
  • Plans must comply with the City's adopted 2018 International Building Code (IBC); alterations to existing structures are additionally within the scope of the International Existing Building Code, which City Code 2-1-5 adopts by reference (the American Legal Publishing codification text still displays the pre-2018 2012 IEBC edition, but City Code 2-1-5/2-1-6 ties Cascade's adopted edition to whatever edition the State of Idaho building code board currently has in force, consistent with the City's 2018-code materials for IBC/IRC/IECC)
  • No building permit may be issued within 72 hours of filing the application; the Building Inspector has a maximum of 15 days to process and issue the permit, per City Code 2-1-12(B) -- the same statutory cap as new construction, since it is the same underlying permit statute
  • Evidence of approval from other governing agencies is required before issuance where the scope of work touches those systems (electric, water, sewer, plumbing, mechanical heating), per City Code 2-1-11
  • It is recommended to call the Building Inspector before submitting to confirm the review scope and whether the specific fit-out work requires a permit at all -- cosmetic-only work not touching structure, egress, fire/life-safety, plumbing, mechanical, or electrical systems may not

Required documents

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Fee schedule

Plan Review FeeCity of Cascade Schedule of Fees, FY2022-2023 -- same surcharge applied to every Cascade building-permit scope. The base building permit fee itself is valuation-based per the adopted 2018 IBC fee table, which the City does not separately reprint (same gap documented throughout this file).
40% of the building permit fee (65% if an outside plan reviewer is used)
Fire District Impact Fee — Non-Residential (applicability to TI/remodel work not confirmed)GENUINE UNCERTAINTY, flagged rather than resolved: both City-published primary sources describing this fee (Schedule of Fees FY2022-2023; Building Department webpage) frame it as collected 'during the building permit application process for new construction.' No source specifically states whether a tenant-improvement/remodel permit that does not add new floor area triggers this fee, or whether it would apply only to the incremental added square footage of a TI that does expand floor area. Do not assume this fee applies to a like-for-like interior remodel without confirming with the Building Inspector (208-382-4279).
$1.16 per square foot, if applicable
Additional Inspection (each)
$35 per hour, minimum 1 hour

Review timeline

Plan review
Not published — contact the department

How long did your Commercial Tenant Improvement (TI) / Remodel Permit permit actually take in Cascade?

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Inspection process

  1. 1

    Rough-In (Framing / Electrical / Plumbing / Mechanical, as applicable)

    Scoped to whichever trades the TI touches; not all TI projects require every rough-in inspection. Electrical, plumbing, and HVAC rough-in must be signed off by State (DOPL) inspectors before the City's framing/rough-in sign-off, consistent with the City's general inspection pattern for new construction.

  2. 2

    Insulation

    Required only if the TI scope opens up wall, ceiling, or floor assemblies that are later concealed

  3. 3

    Final

    Electrical, plumbing, and HVAC final inspections must be signed off by State (DOPL) Inspectors before the City Building Inspector performs the final inspection

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

Tips

  • There is no separate tenant improvement or remodel permit application in Cascade -- a commercial fit-out is permitted as an 'alteration' under the same general Building Permit Application and Cascade Building Code used for new commercial construction.
  • Do not assume the $1.16/sq ft Fire District Impact Fee (Non-Residential) applies to a TI -- the City's own materials describe it as tied to 'new construction,' and no source confirms or rules out its application to a like-for-like interior remodel. Confirm with the Building Inspector before budgeting.
  • The same 72-hour minimum / 15-day maximum statutory issuance window (City Code 2-1-12(B)) applies to TI permits as to new construction, since both fall under the same permit statute.
  • Call the Building Inspector (208-382-4279) before submitting -- cosmetic-only work that doesn't touch structure, egress, fire/life-safety, plumbing, mechanical, or electrical systems may not require a permit at all, per the City's standing 'always best to call' guidance used across all its permit types.
  • This entry is marked 'partial' confidence specifically because fee applicability to a floor-area-neutral TI is genuinely unconfirmed by any primary source found -- not because the permit requirement or the 15-day statutory timeline are in doubt (both are directly confirmed in City Code 2-1-12).

Frequently asked questions

Cascade requires a commercial tenant improvement (ti) / remodel permit for: Falls under the City Code 2-1-4 definition of 'CONSTRUCTION': 'the erection, fabrication, reconstruction, demolition, alteration, conversion, or repair of a building (other than in-kind)' -- a permit is required per City Code 2-1-12(A) before any such work begins; Plans must comply with the City's adopted 2018 International Building Code (IBC); alterations to existing structures are additionally within the scope of the International Existing Building Code, which City Code 2-1-5 adopts by reference (the American Legal Publishing codification text still displays the pre-2018 2012 IEBC edition, but City Code 2-1-5/2-1-6 ties Cascade's adopted edition to whatever edition the State of Idaho building code board currently has in force, consistent with the City's 2018-code materials for IBC/IRC/IECC); No building permit may be issued within 72 hours of filing the application; the Building Inspector has a maximum of 15 days to process and issue the permit, per City Code 2-1-12(B) -- the same statutory cap as new construction, since it is the same underlying permit statute; Evidence of approval from other governing agencies is required before issuance where the scope of work touches those systems (electric, water, sewer, plumbing, mechanical heating), per City Code 2-1-11; It is recommended to call the Building Inspector before submitting to confirm the review scope and whether the specific fit-out work requires a permit at all -- cosmetic-only work not touching structure, egress, fire/life-safety, plumbing, mechanical, or electrical systems may not. If your project isn't listed, confirm with City of Cascade Building Department at (208) 382-4279 before starting work.

Unconfirmed. The City's Schedule of Fees and Building Department webpage both describe this fee as tied to 'new construction,' but no published source directly states whether it applies to a floor-area-neutral interior remodel. Confirm with the Building Inspector (208-382-4279) before assuming either way.

Cascade does not publish a plan-review timeline for this permit. Contact City of Cascade Building Department at (208) 382-4279 for current turnaround.

You'll need: Completed Building Permit Application; Site Plan Drawing / Floor Plan of Tenant Space; Construction Plan Drawings. Depending on your project, Cascade may also ask for: Structural Engineering / Calculations; Energy Code Compliance Documentation. See the required-documents checklist on this page for details on each.

Cascade requires 3 inspection(s) for a commercial tenant improvement (ti) / remodel permit, in order: Rough-In (Framing / Electrical / Plumbing / Mechanical, as applicable), Insulation, Final. Schedule each through City of Cascade Building Department ((208) 382-4279).

Apply through City of Cascade Building Department at 105 South Main Street, Cascade, ID 83611. Phone: (208) 382-4279, email: buildinginspector@cascadeid.us. Office hours: Mon–Fri 8:30 AM – 4:30 PM (per City of Cascade March 2023 newsletter; not independently republished elsewhere on the city site as of verification date). Official information: https://cascadeid.us/city-government/building-department/.

Cascade, Idaho has adopted: 2018 International Building Code (IBC); 2018 International Residential Code (IRC); 2018 International Energy Conservation Code (IECC) — 2018 REScheck Energy Certificate required with submittal. Local amendments apply — see the Cascade overview page for the full list.

No. There is no dedicated TI permit product. A commercial remodel or fit-out is permitted as an 'alteration' under the same Building Permit Application and Cascade Building Code (2018 IBC) used for new commercial construction, with the same 40%/65% plan review surcharge.

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