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Plumbing Permit in Casper, Wyoming

Required for plumbing installations, alterations, and repairs in Casper. Governed by the 2024 International Plumbing Code (IPC).

Verified 2026-07-16 · Source

When you need this permit

  • Plumbing Permit Application submitted to the Building Inspection Division
  • Fee based on the value of the work per the City's combined valuation-based fee schedule
  • Separate Sewer Permit ($35) and Water Permit ($35) required for outside water/sewer connections

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
Sewer Permit
$35
Water Permit
$35

Review timeline

Plan reviewTypical estimate — confirm current times with the Casper building department
~1–10 business days

How long did your Plumbing 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

    Outside Water and Sewer

    For outside water and sewer piping and connections prior to backfill

  2. 2

    Underground Plumbing

    For piping/connections under floor slabs or in crawl spaces prior to being covered

  3. 3

    Rough Plumbing (Top-Out)

    After structure is framed and dried in and plumbing is roughed in, before trim out; system should be pressured before inspection

  4. 4

    Gas Line (Inside and Outside Gas)

    After all gas piping installed; lines should be pressurized before inspection

  5. 5

    Final Plumbing

    Performed when all plumbing work is 100% complete

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

Tips

  • Casper uses the 2024 International Plumbing Code (IPC) — unlike some Western jurisdictions (e.g., Reno) that use the Uniform Plumbing Code, Casper follows the ICC family for plumbing.
  • Outside water and sewer connections require separate $35 Sewer and Water Permits in addition to the plumbing permit.
  • Gas lines must be pressurized and ready for inspection before the inspector arrives.

Frequently asked questions

Casper requires a plumbing permit for: Plumbing Permit Application submitted to the Building Inspection Division; Fee based on the value of the work per the City's combined valuation-based fee schedule; Separate Sewer Permit ($35) and Water Permit ($35) required for outside water/sewer connections. If your project isn't listed, confirm with City of Casper Community Development Department — Building Inspection Division at (307) 235-8254 before starting work.

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; Sewer Permit — $35; Water Permit — $35. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a plumbing permit in Casper typically runs 1–10 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: Plumbing Permit Application. See the required-documents checklist on this page for details on each.

Casper requires 5 inspection(s) for a plumbing permit, in order: Outside Water and Sewer, Underground Plumbing, Rough Plumbing (Top-Out), Gas Line (Inside and Outside Gas), Final Plumbing. 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.

Casper has adopted the 2024 International Plumbing Code (IPC).

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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