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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Big Horn County.

Big Horn County has no building code and no countywide zoning in unincorporated areas. A County development permit is nevertheless required for construction and development, and staff review each proposal for the Flood Damage Prevention Regulation, localized airport-protection zoning and other applicable land-planning rules. Contractors must comply with applicable Wyoming electrical and fire-protection codes. Municipal projects are governed by the applicable town's codes and permit requirements.

Inspection lane

The County performs no structural building-code inspections. For a septic installation, call Land Planning at 307-568-2424 and give at least 24 hours' notice before burial; the installer may not backfill until the department visits the site and gives final approval. Right-of-way access permits require an onsite review before approval and another after construction, coordinated with Engineering at 307-568-2467.

Minor-work playbook

Understand what may be exempt—and what is not.

N/A. The County has no building code and publishes no list of minor or cosmetic building-permit exemptions, but its Development Application expressly applies to any new construction or development activity in unincorporated Big Horn County. The County FAQ advises contacting Land Planning before alterations or improvements; fences outside a floodplain have no county building-code requirements, while a fence or other work in a mapped floodplain requires prior consultation and may need a floodplain permit.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    The County performs no structural building-code inspections. For a septic installation, call Land Planning at 307-568-2424 and give at least 24 hours' notice before burial; the installer may not backfill until the department visits the site and gives final approval. Right-of-way access permits require an onsite review before approval and another after construction, coordinated with Engineering at 307-568-2467.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

No verified lookup link

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

Open planning reference ↗

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.

Agency websiteOpen official source ↗Application instructionsOpen official source ↗Fee scheduleOpen official source ↗Planning or zoning referenceOpen official source ↗

Project questions

Frequently asked questions for Big Horn County

Who handles permitting for this jurisdiction?

Big Horn County Land Planning Department 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 307-568-2424 and request the current application route before preparing a final submittal.

How long might review take?

A typical review timeline was not verified. Ask the agency for its current completeness and review estimate.

How are inspections scheduled?

The County performs no structural building-code inspections. For a septic installation, call Land Planning at 307-568-2424 and give at least 24 hours' notice before burial; the installer may not backfill until the department visits the site and gives final approval. Right-of-way access permits require an onsite review before approval and another after construction, coordinated with Engineering at 307-568-2467.

Which codes and exemptions should I review?

Big Horn County has no building code and no countywide zoning in unincorporated areas. A County development permit is nevertheless required for construction and development, and staff review each proposal for the Flood Damage Prevention Regulation, localized airport-protection zoning and other applicable land-planning rules. Contractors must comply with applicable Wyoming electrical and fire-protection codes. Municipal projects are governed by the applicable town's codes and permit requirements. N/A. The County has no building code and publishes no list of minor or cosmetic building-permit exemptions, but its Development Application expressly applies to any new construction or development activity in unincorporated Big Horn County. The County FAQ advises contacting Land Planning before alterations or improvements; fences outside a floodplain have no county building-code requirements, while a fence or other work in a mapped floodplain requires prior consultation and may need a floodplain permit.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.