Deck Permit in Unincorporated Campbell County, Wyoming
VerifiedDeck construction in unincorporated Campbell County is exempt from a Building Permit if small and detached (a Zoning/site-plan review is still required in most instances); larger or attached decks require a full Building/Zoning permit under the currently adopted IRC. The county's dedicated deck guideline still references the 2018 IRC and has not yet been reissued for the 2024 edition — treat its specific span/footing tables as a baseline reference, not a substitute for current 2024 IRC deck provisions.
Verified 2026-07-01 · Source
When you need this permit
- EXEMPT from a Building Permit (Zoning permit still required in most instances) if ALL of: not serving the main/front exit door; 200 sq. ft. or less; not more than 30 inches above grade within 36 inches of the deck; not attached to the dwelling
- Attached or larger decks require a full Building/Zoning permit
- Footers: minimum 42 inches depth from finish grade to bottom of footing (per the county's guideline, consistent with Chapter 4's 42-inch building frost line depth), 8 inches thick, extending 2 inches beyond post sides
- Posts: 4x4 (or equivalent) up to 8 ft. height; 5x6 required above 8 ft.; all posts pressure-treated or decay-resistant (redwood/cedar)
- Guardrails required for decks more than 30 inches above grade; height 34–38 inches; openings must not allow passage of a 6-inch sphere
- Stairways: minimum 3 ft. clear width, riser 4–7.75 inches, tread depth min. 10 inches nose-to-nose, minimum 3 stringers for a standard 3 ft. wide stairway
Required documents
- Opt
Building Permit & Zoning Certificate Application
Required for decks that do not qualify for the small-deck exemption
- Opt
Residential Deck Guidelines
County's technical guide to deck footings, posts, beams, ledger boards, stairways, and guardrails (references the 2018 IRC — verify against current 2024 IRC deck provisions for any conflicting detail)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Deck Permit (where required) | No fee | Chapter 4 Section 1.8.E 'All Other Permits: No fees.' |
Review timeline
~1–10 business days
Typical estimate — confirm current times with the Unincorporated Campbell County building department
Inspection process
- 1
Footers
Before concrete is poured
- 2
Framing
Required only when the deck is close to the ground, making floor joist/beam/post inspection otherwise impossible after decking is installed
- 3
Final
All framing installed and deck completed
Tips
- A small (≤200 sq. ft.), low (≤30 in. above grade), detached deck not serving the main exit door needs NO building permit — but a zoning permit is required in most instances, so call (307) 682-1970 to confirm before starting.
- The county's published deck guideline still cites the 2018 IRC by name even though Chapter 4 (June 2026) has since adopted the 2024 IRC countywide — use the guideline for general footing/guardrail technique, but confirm current dimensional requirements (span tables, guardrail heights) against the 2024 IRC directly for a permit-triggering deck.
- There is no fee for a deck permit when one is required.
Frequently asked questions
- Do I need a permit to build a deck in unincorporated Campbell County?
- Not if the deck is 200 sq. ft. or less, not attached to the dwelling, not over the main exit door, and not more than 30 inches above grade within 36 inches of the deck — though a zoning permit is still required in most instances. Larger or attached decks need a full Building/Zoning permit, issued at no fee.
Sources & verification
Verified against official sources. Last reviewed 2026-07-01.
- Campbell County Department of Public Works — Building, Planning & Zoning Division — official building department
- Campbell County Residential Deck Guidelines
- Campbell County Chapter 4 Rules Regulating Construction (2024 IRC adoption, frost line depth, fees)
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 Unincorporated Campbell County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
Other permits in Unincorporated Campbell County
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