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Basement Finish Permit in Casper, Wyoming

Required for finishing a basement in an existing residential structure in Casper when the work involves framing, electrical, plumbing, or mechanical systems. A dedicated Building Guide ('Residential single family basement finish') is available from Community Development. Governed by the 2024 IRC.

Verified 2026-07-16 · Source

When you need this permit

  • Building permit required whenever basement finish work involves framing, electrical, plumbing, or mechanical systems
  • Egress window requirements apply to any habitable/sleeping space per 2024 IRC
  • Construction drawings showing room layout, framing, and MEP work required
  • Fee based on the value of the work per the combined valuation-based fee schedule

Required documents

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Fee schedule

Initial Building Permit FeeCity of Casper Permit Fee Schedule (eff. February 2, 2026)
$35
Combined Building/Electrical/Plumbing/Mechanical Permit Fee — valuation-basedCity of Casper Permit Fee Schedule (eff. February 2, 2026)
Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); over $100,000 = $806 + $5.60 per additional $1,000 or fraction thereof

Review timeline

Plan reviewTypical estimate — confirm current times with the Casper building department
~5–20 business days

How long did your Basement Finish Permit permit actually take in Casper?

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

Inspection process

  1. 1

    Framing

    After framing complete and MEP rough-ins are installed and inspected, including egress window verification

  2. 2

    Insulation

    Proper R-values and placement

  3. 3

    Drywall

    Thickness/type and screw placement

  4. 4

    Final

    All work complete per approved plans

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

Tips

  • Egress windows are a common point of plan-review rejection for basement finishes that add sleeping rooms — confirm minimum egress opening size and sill height with the Building Inspection Division.
  • Request the City's 'Residential single family basement finish' Building Guide from Community Development at (307) 235-8254 before designing.

Frequently asked questions

Yes, if the work involves framing, electrical, plumbing, or mechanical systems. The City of Casper reviews basement finishes under the 2024 IRC, including egress requirements for any habitable or sleeping space. A dedicated Building Guide is available from Community Development.

In Casper, the published Initial Building Permit Fee is: $35. Additional published fees: Combined Building/Electrical/Plumbing/Mechanical Permit Fee — valuation-based — Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); over $100,000 = $806 + $5.60 per additional $1,000 or fraction thereof. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a basement finish permit in Casper typically runs 5–20 business days. This is an estimate, not a published figure — confirm current review times with City of Casper Community Development Department — Building Inspection Division at (307) 235-8254.

You'll need: Building Permit Application; Construction Drawings. See the required-documents checklist on this page for details on each.

Casper requires 4 inspection(s) for a basement finish permit, in order: Framing, Insulation, Drywall, Final. Schedule each through City of Casper Community Development Department — Building Inspection Division ((307) 235-8254).

Apply through City of Casper Community Development Department — Building Inspection Division at 200 N David St, Casper, WY 82601. Phone: (307) 235-8254, email: building@casperwy.gov. Office hours: Mon–Fri 8:00 AM–5:00 PM (in-person/phone code consultation available 8:00–9:00 AM and 4:00–5:00 PM). Official information: https://www.casperwy.gov/services/building_and_inspections/index.php.

Casper, Wyoming has adopted: 2024 International Building Code (IBC); 2024 International Residential Code (IRC); 2024 International Fire Code (IFC); 2024 International Existing Building Code (IEBC); 2024 International Energy Conservation Code (IECC) — applies to the building thermal envelope ONLY per City of Casper adoption note; 2024 International Plumbing Code (IPC); 2024 International Fuel Gas Code (IFGC); 2024 International Mechanical Code (IMC); 2023 NFPA 70 National Electrical Code (NEC); ICC A117.1-2009 Accessible and Usable Buildings and Facilities. Local amendments apply — see the Casper overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

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

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Basement Finish Permit in other cities

Cheyenne, WyomingGillette, WyomingBountiful, UtahClearfield, UtahDraper, UtahEagle Mountain, UtahHerriman, UtahKaysville, Utah

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