Administrative overview · FIPS 56031
Platte County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Platte County Planning and Zoning
For a project in or near Platte County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
307-322-1330
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Platte County Courthouse, 800 9th Street, Wheatland, WY 82201; mailing address: PO Box 728, Wheatland, WY 82201
Operating hours
Department hours Monday-Thursday, 7:00 AM-5:00 PM; in-office service Monday-Thursday, 8:00 AM-noon or by appointment.
Review expectation
N/A; the County requires Board of County Commissioners approval before covered construction begins but does not publish a dependable decision deadline for Construction Certificates.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Platte County
Who handles permitting for this jurisdiction?
Platte County Planning and Zoning is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
No verified online portal was located in the reviewed public materials. Contact 307-322-1330 and request the current application route before preparing a final submittal.
How long might review take?
N/A; the County requires Board of County Commissioners approval before covered construction begins but does not publish a dependable decision deadline for Construction Certificates.
How are inspections scheduled?
Platte County publishes no general structural inspection program because it has adopted no building code. The certificate application authorizes County personnel to enter for zoning assessment, evaluation or inspection; coordinate any requested County visit through Planning and Zoning at 307-322-1330. For a guaranteed state electrical inspection in Platte County, contact Wyoming inspector Brian Keithly at 307-254-1081 after obtaining the wiring permit. State Fire Marshal and DEQ septic inspections are separate where applicable.
Which codes and exemptions should I review?
Platte County has not adopted an IBC-family building code and does not conduct general building-code review in unincorporated areas. Its Construction Certificate is a zoning/land-use approval under the Platte County Planning and Zoning Rules and Regulations. State-regulated projects remain subject to Wyoming's 2024 IBC, IFC, IFGC, IMC and IEBC through the State Fire Marshal, and the 2026 NEC is effective July 1, 2026. The County's current FAQ states that a Construction Certificate is required for a structure built, placed or erected outside town limits when construction cost exceeds $1,000,000; structures at or below that threshold are therefore outside the currently published certificate trigger. Incorporated-town projects must follow the municipality's rules. County zoning, setback, floodplain and special-use requirements, plus separate state fire, electrical, septic and well permits, can still apply regardless of the Construction Certificate threshold.