Casper Building Permit Office
Casper
City of Casper
307-235-8254
200 N David Street, Casper, Wyoming, 82601
Construction permitting inside the City of Casper is handled by the City of Casper Community Development Department, Building Inspection Division. The division reviews plans, issues building and trade permits, licenses contractors and performs inspections for residential and commercial work within city limits.
Casper uses an online Citizen Self Service (CSS) Portal for permit applications, documents, payments, permit tracking and inspection requests. Paper submissions are also accepted through Community Development at City Hall.
City of Casper or Natrona County?
Properties inside Casper city limits use the City of Casper Building Inspection Division. Properties in the unincorporated portions of Natrona County fall under the Natrona County Building Department instead. Nearby municipalities such as Mills, Evansville and Bar Nunn also have their own jurisdictional arrangements.
This distinction matters because the city and county publish different applications, zoning rules, fee schedules and inspection procedures.
From zoning review to an issued permit
Confirm the project with Planning when land-use review applies
Casper’s Planning Division handles zoning classifications, setbacks, permitted and conditional uses, site planning, subdivisions, sign regulations, planned unit developments and related land-use approvals. Commercial projects are directed to Planning before construction documents are submitted for building review.
Submit the permit application and construction documents
Applications and plans may be submitted through the City’s CSS Portal. The current commercial checklist requires plans submitted electronically through the portal in PDF format, while qualifying paper plans may also be submitted through Community Development.
Complete plan review and resolve comments
Complete commercial building applications are normally reviewed within 10 business days. Re-submittals are normally reviewed within another 10 business days after receipt. Workload can extend those periods, applications are reviewed in order received, and the Building Division states that expedited review is not available.
Pay the assessed fees and obtain the permit
Permit and plan-review fees are based on project valuation, including labor and materials. Payment follows the review process and is required before the permit is issued. Online applicants can pay through the CSS Portal and print the issued permit from their account.
Request inspections before work is concealed
Required work must be inspected before the project advances to a stage that covers it with drywall, insulation, backfill or other finishes. The CSS Portal can be used to request inspections and follow the permit record.
Planning approval can control when the building permit is released
Casper separates land-use review from building-code review. For commercial work, the City’s permit checklist directs applicants to arrange a pre-application meeting with the Planning Division before submitting construction documents. Issues identified during that stage can include zoning, parking, landscaping, drainage, traffic, fire access, utilities and site design.
New commercial construction, changes of use or occupancy, additions and certain exterior site changes may require a new or amended site plan or site plan agreement. When required, that planning process must be completed before the building permit can be issued.
Building and trade work may require separate permits
Covers the structural and building-code portion of construction, additions, alterations and other work subject to Casper’s adopted codes.
Electrical work is permitted separately when the project includes electrical installations or modifications.
Plumbing and mechanical scopes require their own permits rather than being treated as part of the building permit alone.
Sign work can require a separate permit. Required fire-suppression and fire-alarm plans are submitted to Casper Fire Community Risk Reduction rather than being treated solely as building-plan documents.
Inspection points during construction
The exact inspection sequence depends on the project. Casper publishes separate inspection stages for building, electrical, mechanical and plumbing work.
- Footing, caisson or monolithic slab inspections before concrete placement as applicable
- Foundation wall inspections
- Framing after required rough electrical, plumbing and mechanical work has been inspected
- Insulation inspection before concealment
- Drywall inspection where required
- Electrical service, rough and final inspections as applicable
- Mechanical rough and final inspections
- Water, sewer, underground plumbing, rough plumbing and gas-line inspections as applicable
- Final or Certificate of Occupancy inspection after the permitted work is complete
The Building Inspection Division directs that construction be inspected before proceeding to the next phase or covering inspected work with insulation, drywall, backfill or similar materials.
Casper uses the 2024 International Codes with local amendments
The City makes the adopted 2024 International Building, Residential, Existing Building, Plumbing, Mechanical, Fuel Gas and Fire Codes available for reference and publishes local amendments through Title 15 of the Casper Municipal Code.
The Building Inspection Division also maintains project-specific building guides for common residential work, including additions, basement finishing, patio covers and carports, detached garages, roofing and re-roofing, decks, ramps, pole barns, monolithic slabs and tiny houses.
Casper distinguishes minor structures from larger permitted work
The City’s current commercial permitting material states that sheds exceeding 120 square feet, fences over 6 feet high and retaining walls measuring 4 feet or more from the footing or base to the top require a building permit.
Sheds measuring 120 square feet or less and fences 6 feet or less use the City’s free fence/shed permit process. Retaining walls under 4 feet do not require a building permit under the published guidance, although Planning review may still be needed to verify placement and site-plan compliance.
Casper permit and code resources
City of Casper CSS Portal
Submit applications and documents, make eligible payments, track permit status and request inspections.
Permit Information
City permit requirements and Building Inspection Division guidance.
Inspection Information
Published building, electrical, mechanical and plumbing inspection stages.
Casper Planning Division
Zoning, setbacks, development review, pre-application meetings, site planning and land-use applications.
Building and Fire Code Resources
Adopted 2024 code information, local amendments and residential building guides.
Natrona County Building & Inspection
Building-permit authority for property under Natrona County’s unincorporated jurisdiction.