This is PermitBase’s published record for Casper as of 2026-07-01. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Casper building permits
VerifiedCasper, Wyoming — as published 2026-07-01.
Verified 2026-07-16 · Source
Codes adopted
Permit types & fees
Residential Building Permit (New Construction)
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- Building permit and plan review required before construction begins
- Submit through the CSS (Citizen Self-Service / EnerGov) Portal or in person to the Building Inspection Division
- Residential single-family new construction requires: plot plan, soils report/analysis, engineered foundation plan, wall bracing plan, and floor plans showing layout, window locations/sizes, and room sizes
- Plans reviewed against the 2024 IRC and the thermal-envelope provisions of the 2024 IECC
- $280 plan check fee applies to all new one- and two-family residential buildings
- Permit is valid for 180 days from issuance
- Fee is based on the value (materials and labor) of the work per the City's combined valuation-based fee schedule
Required documents
- RequiredBuilding Permit ApplicationCity of Casper Building Permit Application, submitted via the CSS Portal or in person
- RequiredResidential Building Permit ChecklistCity of Casper's submittal checklist for residential building permits
- RequiredPlot PlanSite plan showing lot lines, setbacks, and location of proposed structure(s) on the City's Plot Plan Form
- RequiredSoils Report/AnalysisRequired for single-family new construction to inform engineered foundation design
- RequiredEngineered Foundation PlanStamped foundation design plan for new residential construction
- RequiredWall Bracing PlanRequired structural wall bracing plan per 2024 IRC
- RequiredConstruction Drawings / Floor PlansFull plan set showing home layout, window locations and sizes, room sizes, and other construction details
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Combined Building/Electrical/Plumbing/Mechanical Permit Fee — valuation $1 to $100,000 | Graduated table from $70 (valuation $1–$1,000) up to $841 (valuation $99,001–$100,000); see full valuation table in source PDF | City of Casper Permit Fee Schedule (eff. February 2, 2026) — 'Combined Building, Electrical, Plumbing and Mechanical Permit Fee Schedule'; this includes the Initial Permit Fee |
| Combined Permit Fee — valuation over $100,000 | $806 for the first $100,000 plus $5.60 for each additional $1,000 or fraction thereof | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Plan Check Fee — new 1- and 2-family residential | $280 flat | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Plan Check Fee — multi-family/commercial/industrial exceeding $25,000 valuation | 65% of the building permit fee | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Sewer Permit | $35 | — |
| Water Permit | $35 | — |
| After-the-fact permit surcharge | Double the building permit fee | Assessed when construction is initiated before plan review/approval of a complete application |
Residential Addition / Remodel Permit
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- All exterior work such as decks, additions, or accessory structures requires a plot plan and construction drawings
- Construction drawings typically include foundation design, room sizes, window locations and sizes
- Fee based on the value (materials and labor) of the work per the combined valuation fee schedule
- Permit valid for 180 days from issuance
- Building Guides available from Community Development for: one-story additions, basement finish, patio covers/carports, detached garages, decks, ramps, pole barns, monolithic slabs
Required documents
- RequiredBuilding Permit ApplicationSubmitted via CSS Portal or in person; select addition/remodel scope
- RequiredResidential Building Permit ChecklistCity of Casper's submittal checklist
- RequiredPlot PlanSite plan showing lot lines, setbacks, existing structures, and proposed addition footprint
- RequiredConstruction DrawingsPlans showing framing, dimensions, and connection to existing structure; MEP details as applicable
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026) — same combined table used for new construction; valuation is based on the cost of the addition/remodel work |
| After-the-fact permit surcharge | Double the building permit fee | — |
Electrical Permit
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- Electrical Permit Application submitted to the Building Inspection Division (via CSS Portal or in person)
- Service changes, panel upgrades, new circuits, rewiring for additions/alterations
- Governed by the 2023 NFPA 70 National Electrical Code
- Fee based on the value of the work per the City's combined valuation-based fee schedule
- Casper's Building Inspection Division performs its own electrical plan review and inspections (Temporary Power, Rough Electrical, Service, Final Electrical) per the City's own Inspection Information page, confirmed live 2026-07-16
Required documents
- RequiredElectrical Permit ApplicationCity of Casper Electrical Permit Application form
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) — Casper does not publish a separate electrical-only fee table; electrical work is priced off the combined valuation table |
| 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026) — labeled 'Combined Building, Electrical, Plumbing and Mechanical Permit Fee Schedule' |
Plumbing Permit
VerifiedRequired for plumbing installations, alterations, and repairs in Casper. Governed by the 2024 International Plumbing Code (IPC).
Verified 2026-07-16 · Source
Requirements
- 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
- RequiredPlumbing Permit ApplicationCity of Casper Plumbing Permit Application form
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Sewer Permit | $35 | — |
| Water Permit | $35 | — |
Mechanical / HVAC Permit
VerifiedRequired 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).
Verified 2026-07-16 · Source
Requirements
- Mechanical 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
- Gas piping/line work inspected under the 2024 IFGC
Required documents
- RequiredMechanical Permit ApplicationCity of Casper Mechanical Permit Application form
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
Roofing Permit (Reroof)
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- Building permit required for roof replacement/reroofing
- Fee based on the value of the roofing work per the combined valuation-based fee schedule
- Building Guide available: 'Residential single family roofing and re-roofing'
Required documents
- RequiredBuilding Permit ApplicationSubmitted for reroofing scope of work
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Combined Building 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026); Casper does not publish a separate flat reroof fee — value is based on the roofing job cost |
Solar PV Permit
VerifiedCasper 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.
Verified 2026-07-16 · Source
Requirements
- Building permit required for racking/structural attachment to roof or ground mount
- Electrical permit required for PV wiring, disconnects, and interconnection (issued by Casper's own Building Inspection Division — see electrical-permit)
- Structural adequacy of the roof (snow/wind load per 2024 IRC/IBC) must be demonstrated
- Fee based on the value of the solar installation per the combined valuation-based fee schedule
- Contact the Building Inspection Division at (307) 235-8254 before submitting plans, as Casper does not publish a dedicated solar permit guide
Required documents
- RequiredBuilding Permit ApplicationFor the structural/racking portion of the solar installation
- RequiredElectrical Permit ApplicationFor the electrical/interconnection portion of the solar installation
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Combined Building/Electrical 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026); Show full citationHideCity of Casper Permit Fee Schedule (eff. February 2, 2026); Casper publishes no dedicated solar-PV fee line — solar work is charged under this same general valuation-based Combined Building, Electrical, Plumbing and Mechanical Permit Fee Schedule that governs every other building/electrical trade permit in the city |
Accessory Dwelling Unit (ADU) Permit
VerifiedCasper 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.
Verified 2026-07-16 · Source
Requirements
- Property must be zoned R-2 (One Unit Residential) — Casper Municipal Code § 17.32.030(J) lists 'Accessory dwelling unit' as a conditional use in R-2 only; ADUs are not an allowed use in R-1, R-3, R-4, or R-5
- A conditional use permit must be obtained from the Planning and Zoning Commission before applying for a building permit, per the conditional-use petition/hearing procedure in § 17.12.240 of Title 17
- Per the ADU definition in § 17.08.010: either the principal dwelling unit or the ADU must be occupied by an owner of the property or an immediate family member of the owner
- The ADU may not be subdivided or otherwise segregated in ownership from the principal dwelling unit (§ 17.08.010)
- Once zoning/conditional-use approval is obtained, the ADU is built and permitted under the standard residential building permit process (2024 IRC), subject to R-2's general minimum standards in § 17.32.040 (lot area, lot width, setbacks)
- Fee based on the value of construction per the combined valuation-based fee schedule (same schedule as new residential construction — no ADU-specific fee line exists)
Required documents
- RequiredConditional Use Permit ApplicationPetition to the Planning and Zoning Commission for conditional-use approval of an ADU in an R-2 district, per Title 17 § 17.12.240
- RequiredBuilding Permit ApplicationStandard residential building permit application, submitted after conditional-use approval; ADUs follow the same submittal process as new residential construction
- RequiredPlot PlanSite plan showing lot lines, existing structures, proposed ADU location, and parking
- RequiredConstruction DrawingsFull plans for the ADU under the 2024 IRC
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Combined Building 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026); same fee structure as new residential construction — no ADU-specific fee line exists |
Demolition Permit
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- Residential Demolition Permit: $200 flat fee, plus Erosion Control Permit if applicable
- Commercial Demolition Permit: $300 flat fee, plus Erosion Control Permit if applicable
- Erosion Control Permit required if applicable: $50 per acre, plus bond/surety
- Utility disconnects should be coordinated prior to demolition
Required documents
- RequiredBuilding Permit ApplicationUsed for demolition permit applications; specify demolition scope
- OptionalErosion Control Permit ApplicationRequired in addition to the demolition permit when the site disturbance qualifies for erosion control review
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Residential Demolition Permit | $200, plus Erosion Control Permit if applicable | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Commercial Demolition Permit | $300, plus Erosion Control Permit if applicable | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Erosion Control Permit | $50 per acre, plus bond/surety | — |
Commercial Tenant Improvement Permit
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- Commercial Building Permit Checklist submittal required
- Life-safety plan typically required for commercial tenant improvements
- Engineered building and site plan drawings required
- Planning/Zoning approval may be required — contact (307) 235-8241 before submitting
- A plan check fee of 65% of the building permit fee applies to commercial projects exceeding $25,000 in valuation
- Fee based on the value of the work per the combined valuation-based fee schedule
Required documents
- RequiredCommercial Building Permit ChecklistCity of Casper's submittal checklist for commercial building permits
- RequiredBuilding Permit ApplicationSubmitted via CSS Portal or in person
- OptionalLife-Safety PlanRequired for most commercial tenant improvement/build-out projects
- RequiredEngineered Building/Site PlansStamped drawings for the tenant improvement scope of work
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Plan Check Fee — commercial projects exceeding $25,000 valuation | 65% of the building permit fee | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
Basement Finish Permit
VerifiedRequired 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
Requirements
- 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
- RequiredBuilding Permit ApplicationSubmitted for basement finish scope of work
- RequiredConstruction DrawingsFloor plan showing room layout, framing, egress windows, and MEP work
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
Deck Permit
VerifiedRequired 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.
Verified 2026-07-16 · Source
Requirements
- Building permit required for decks that are not exempt flatwork (exempt: landings/platforms/walkways not more than 30 inches above grade and not over a basement or story below)
- Plot plan showing deck location, setbacks, and dimensions required
- Construction drawings showing framing, footing depth, and guardrail/handrail details required
- Fee based on the value of the work per the combined valuation-based fee schedule
Required documents
- RequiredBuilding Permit ApplicationSubmitted for deck scope of work
- RequiredPlot PlanSite plan showing deck location and setbacks
- RequiredConstruction DrawingsFraming plan showing footing depth, ledger attachment, and guardrail/handrail details
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Initial Building Permit Fee | $35 | City of Casper Permit Fee Schedule (eff. February 2, 2026) |
| Combined Building 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 | City of Casper Permit Fee Schedule (eff. February 2, 2026); Casper does not publish a flat deck fee — value is based on the deck construction cost, unlike cities such as Reno that flat-rate decks |
Sources & verification
Verified against official sources. Last reviewed 2026-07-16.
Fee schedules
Checklists & handouts
Online permit portal
Codes & ordinances
Department & other records
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.