Casper building permits
VerifiedDepartment contacts, adopted codes, permit types, fees, and gotchas for Casper, Wyoming.
Last verified 2026-07-16 · Source · Embed this page’s badge · Version history
Building department
- Address
- 200 N David St, Casper, WY 82601
- Phone
- (307) 235-8254
- 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)
- Website
- Official site
- Permit portal
- Apply online at Casper's portal
Inspection guide
See how inspections work in Casper — sequence, scheduling & re-inspection fees.
Codes adopted
Wyoming has no statewide-mandated building code for general private construction. Under Wyoming Statute § 35-9-106, the Council on Fire Prevention and Electrical Safety in Buildings adopts minimum fire, building, mechanical, existing-building, and fuel-gas standards (not exceeding the International Codes), but § 35-9-121 makes local enforcement an opt-in delegation: a municipality or county must apply to the State Fire Marshal for local enforcement authority and adopt, by ordinance or resolution, standards equivalent to or more stringent than the state's — otherwise no local building code applies at all. In practice this produces exactly the fragmented picture that describes most of the state: some cities and counties (e.g., Laramie County, Natrona County) have adopted and enforce their own building codes, while many unincorporated county areas genuinely require no building permit for general construction. Electrical is different: under § 35-9-119(a)(i), the Chief Electrical Inspector (Wyoming State Fire Marshal's Office, Department of Fire Prevention and Electrical Safety) enforces the National Electrical Code statewide by default, EXCEPT in localities that have been separately granted their own certified electrical-enforcement authority under § 35-9-121(a) — so electrical permitting may be issued by the state program or by the local jurisdiction depending on which one currently holds delegated authority. Always confirm both the current building-code adoption status (if any) and which entity — state or local — issues the electrical permit with the specific jurisdiction before submitting plans.
- 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
Permit types & fees
Residential Building Permit (New Construction)
Required for new single-family dwellings and other new one- and two-family residential construction in Casper. Governed by the 2024 IRC. Reviewed for compliance with structural, energy (thermal envelope), and life-safety provisions before permit issuance.
From$35Residential Addition / Remodel Permit
Required for additions, remodels, and alterations to existing one- and two-family dwellings in Casper, including decks, patio covers, detached garages, and basement finishes when they involve framing, electrical, plumbing, or mechanical work. Governed by the 2024 IRC.
From$35Electrical Permit
Required for electrical installations, alterations, and service changes within the City of Casper. Casper's Building Inspection Division holds delegated local electrical authority and performs its OWN electrical plan review and inspections under the 2023 NFPA 70 NEC — electrical permits here are NOT issued by the Wyoming State Fire Marshal's statewide electrical program.
From$35Plumbing Permit
Required for plumbing installations, alterations, and repairs in Casper. Governed by the 2024 International Plumbing Code (IPC).
From$35Mechanical / HVAC Permit
Required for heating, cooling, ventilation, and fuel gas equipment installations in Casper. Governed by the 2024 International Mechanical Code (IMC) and 2024 International Fuel Gas Code (IFGC).
From$35Roofing Permit (Reroof)
Required for roof replacement (tear-off and reroof) on residential and commercial buildings in Casper. A Residential Roofing and Re-Roofing Building Guide is available from Community Development. Fees are valuation-based off the City's combined fee schedule.
From$35Solar PV Permit
Casper issues no separate solar-PV permit type; rooftop or ground-mounted PV is permitted as a combined building permit (structural/racking) and electrical permit (interconnection, wiring) under the City's general valuation-based fee schedule (City of Casper Fee Schedule, eff. Feb 2, 2026), the same schedule that prices every other building/electrical trade permit in Casper.
From$35Accessory Dwelling Unit (ADU) Permit
Casper Municipal Code Title 17 (Zoning) § 17.08.010 defines an 'accessory dwelling unit' as a habitable living unit added to, created within, or detached from a single-family dwelling that provides basic living, sleeping, eating, cooking, and sanitation facilities; either the principal or the accessory unit must be owner-occupied (or occupied by an immediate family member of the owner), and an ADU may not be subdivided or separated in ownership from the principal dwelling. Per § 17.32.030(J), an accessory dwelling unit is a CONDITIONAL USE in the R-2 (One Unit Residential) zoning district — it is not listed as permitted or conditional in R-1 (Residential Estate, § 17.28), R-3 (One to Four Unit Residential, § 17.36), R-4 (High Density Residential, § 17.40), or R-5 (Mixed Residential, § 17.44). There is no standalone ADU ordinance or ADU-specific permit fee; once the R-2 conditional use permit is approved by the Planning and Zoning Commission (procedure at § 17.12.240), the ADU is built under the standard residential building permit process (2024 IRC) and priced off the combined valuation-based fee schedule.
From$35Demolition Permit
Required for demolition of structures in Casper. Residential and commercial demolition are flat-fee permits; an Erosion Control Permit is also required if applicable to the site disturbance.
From$200,Commercial Tenant Improvement Permit
Required for interior alterations to commercial spaces (tenant build-outs, remodels) in Casper. Commercial projects often require a life-safety plan, engineered building/site plan drawings, and Planning/Zoning approval prior to permit issuance. Governed by the 2024 IBC and 2024 IFC.
From$35Basement Finish Permit
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.
From$35Deck Permit
Required for construction of a new deck attached or detached from a residential structure in Casper, unless the deck qualifies as exempt flatwork. A dedicated Building Guide ('Residential single family decks') is available from Community Development. Governed by the 2024 IRC.
From$35EV Charger / EVSE Permit
Casper has no standalone EV-charger/EVSE permit type or fee line item. Installing electric vehicle charging equipment (e.g., a dedicated 240V Level 2 circuit or panel upgrade) is electrical work, and per the electrical-permit entry, Casper's Building Inspection Division holds delegated local electrical authority and performs its own electrical plan review and inspections under the 2023 NFPA 70 NEC -- not the Wyoming State Fire Marshal's statewide electrical program. An EV charger installation is billed under the same 'Combined Building, Electrical, Plumbing and Mechanical Permit Fee Schedule' (City of Casper Permit Fee Schedule, eff. February 2, 2026) used for all electrical work, since no EV-charger-specific line item exists in the City's fee schedule as of the last verification.
From$35Sign Permit
Required for most commercial signage in Casper, submitted to the Building Inspection Division as a combined 'building and sign permit application.' Freestanding and monument sign structures additionally require a stamped engineered drawing for wind/snow load. Full sign regulations (size, square footage, location, and permitting by zoning district) are set out in Casper Municipal Code Chapter 17.96.
From$35Fire Sprinkler / Fire Alarm Permit
Fire protection system work (sprinkler and alarm installations, additions, or alterations) is subject to plan review in Wyoming regardless of size or valuation. The Casper Fire Department (CFD) actively administers the City's own adopted 2024 International Fire Code (Casper Municipal Code Chapter 15.40) and runs local programs such as the Fire Self-Inspection Program (Ordinance No. 8-24), indicating local fire-code authority. However, it is not published whether Casper holds the Wyoming State Fire Marshal's 'sole plan review authority' delegation (W.S. § 35-9-121(b)) specifically for fire-protection-system plans — as distinct from Casper's separately confirmed local ELECTRICAL delegation documented in the electrical-permit entry — or whether such plans instead route to the Wyoming State Fire Marshal's Office (WSFM) eLicensing/ePermit/ePayment portal. Applicants should confirm the correct reviewing authority directly with CFD before submitting.
See fee scheduleChange of Use / Certificate of Occupancy
Casper does not issue a standalone 'change of use' permit or a freestanding Certificate of Occupancy (C.O.) product separate from its building permit process — confirmed by direct review of the City's Permit Information page, Licenses and Permits page, and Permit Fee Schedule (eff. Feb 2, 2026), none of which list such a product. Per the residential-building-permit and commercial-tenant-improvement-permit entries, 'Final / Certificate of Occupancy' is the final inspection step WITHIN the standard building permit process, not a separately purchasable permit. A genuine change in use or occupancy classification (without new construction) is governed by the 2024 International Existing Building Code (IEBC) — already listed in the codesAdopted — which contains dedicated Change of Occupancy provisions (IEBC Chapter 10) requiring compliance verification before the new use begins. Separately, registering a business at a new or different location is handled through the City's business-licensing process, though the specific 'change of location' mechanics were not independently confirmed.
From$35valuation-based
Casper's permit history isn't searchable here yet
This page covers what the permit requires. What we don't have for Casper yet is the record of permits actually issued — the history you'd search by street address. That is a gap in our coverage, not a statement about any particular property.
Your email, and the place — never an address. We only use it to tell you when Casper lands. Privacy.
New residential construction activity
New privately-owned residential construction onlyHousing units authorized by building permits for new privately-owned residential construction — this is not total permit volume (no commercial permits or remodels).
- Latest month (2026-08)
- 7units
4 buildings · $1.6M valuation
- Trailing 12 months
- 60units
12 of 12 months reported · #9 in Wyoming coverage by units
- Year to date (2026 YTD through 2026-08)
- 37units
34 buildings · $14.7M valuation
8 month(s) reported to Census
- Full year 2025
- 73units
72 buildings · $29M valuation
Source: U.S. Census Bureau, Building Permits Survey (BPS), 2026-08 vintage. Census survey data — separate from the permit-requirements verification above. All Wyoming building activity
Tips & gotchas
- Casper uses a SINGLE COMBINED Building, Electrical, Plumbing and Mechanical valuation-based permit fee schedule — most trade permits are priced off the same table rather than separate per-trade tables (a notable contrast to cities like Reno that publish separate flat-rate and EZ-permit tables per trade).
- Casper issues its OWN electrical permits and performs its own electrical inspections through its Building Inspection Division — it is NOT under the Wyoming State Fire Marshal's default statewide electrical program. The City's Building and Fire Code Resources page lists a Deputy Building Official/Electrical Inspector and a separate Electrical Inspector, and its Inspection Information page lists City-run Temporary Power, Rough Electrical, Service, and Final Electrical inspections.
- Casper has adopted the 2024 I-Codes package (IBC, IRC, IFC, IEBC, IECC, IPC, IFGC, IMC) plus the 2023 NFPA 70 NEC and ICC A117.1-2009 — per the City's own adopted-codes page.
- The 2024 IECC applies to the BUILDING THERMAL ENVELOPE ONLY per the City's own adoption note — this is a notable local carve-out.
- Permits are valid for 180 days from issuance.
- A $280 flat plan check fee applies to all new 1- and 2-family residential buildings; a 65% plan check fee applies to multi-family/commercial/industrial permits exceeding $25,000 in valuation.
- After-the-fact permits (construction started before plan review/approval) are assessed double the standard fee.
- Certain small-scale work is exempt from a building permit: unheated detached accessory buildings under 120 sq ft, fences under 6 ft, retaining walls under 4 ft (with conditions), exempt flatwork under 30 inches above grade, and cosmetic finish work — though a free Fence/Shed permit may still be required for some of these.
- Casper does not maintain a standalone ADU ordinance or a dedicated solar PV permit/fee. Solar PV is permitted as a combined building+electrical permit under the general valuation-based fee schedule. ADUs are a conditional use ONLY in the R-2 (One Unit Residential) zoning district — per Casper Municipal Code Title 17 § 17.32.030(J) (Municode Library); ADUs are not an allowed use in R-1, R-3, R-4, or R-5, and require Planning and Zoning Commission conditional-use approval plus owner-occupancy of the principal or accessory unit per the ADU definition in § 17.08.010.
- Casper's Building Inspection Division per the City's own Building and Fire Code Resources page: Chief Building Official — Justin Scott; Deputy Building Official — Shawn Barrett; Building Inspector — Zac Horner. The page no longer names a separate Electrical Inspector or Plumbing/Mechanical Inspectors by title (the prior roster's Joe Porter, Donnie Lane, and Brian DeVault are no longer listed there); this is a staffing-page change only — the Inspection Information page still confirms the City runs its own Temporary Power/Rough/Service/Final Electrical inspections.
- The Feb 2, 2026 fee schedule PDF is the current edition — no newer edition appears on the fee-schedules listing page. The fee figures, the 180-day validity, the inspection-list wording, and the ADU zoning/ownership language recorded here come from permit_requirements.php, building_and_fire_codes.php and inspections.php, plus the Municode ADU citations (Title 17 §§ 17.32.030(J)/17.08.010, version MAR 16, 2026 current). The fee PDF's dense multi-column table does not copy and paste cleanly, so read the figures from the page as laid out rather than from extracted text. The only recent change is the staff roster — see the tip above.
- Permits/inspections should be submitted through the CSS (Citizen Self-Service) Portal, which runs on Tyler Technologies EnerGov at eg.casperwy.gov.