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Residential Addition, Remodel, Deck/Patio/Porch, and Basement Finish Permit in Unincorporated Laramie County, Wyoming

Required for additions, interior remodels/renovations, basement finishes, and residential decks/patios/porches in unincorporated Laramie County. Charged under the same valuation-based fee table as new construction, using the county's per-square-foot project valuation chart.

Verified 2026-07-01 · Source

When you need this permit

  • Additions: county pre-approved Laramie County Foundation Standards may apply, or a Wyoming Design Professional must stamp site-specific foundation plans; wall heights and underslab utility/mechanical room locations must be shown
  • Basement finish/renovation: entire basement floor plan required with all rooms labeled; egress window locations and sizes required; adding an egress window requires stamped foundation plans from a Wyoming Design Professional; existing vs. new work must be distinguished
  • Residential deck/patio/porch: building plans, caisson details (pre-approved Laramie County Foundation Standards accepted), and elevations; deck framing that supports a roof load requires engineering
  • Revisions to an active permit: submit a Residential Additional Work and/or Revision Form with changes marked in red on the plans, plus any additional fees

Required documents

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Fee schedule

Building Permit Fee — same valuation-based table as new constructionLaramie County Building Permit Fee Schedule
Varies by project valuation — see Laramie County 2022 Building and Plan Review Fee Schedule (e.g., $270.00 for $10,001–$15,000 valuation; $450.00 for $20,001–$25,000)
Plan Review Fee
65% of the Building Permit Fee
Project Valuation — Attached GarageLaramie County Guidance for Residential Projects — Project Valuation Calculation chart
$20.00 per square foot
Project Valuation — Enclosed Porch/Patio/Deck/Sunroom
$43.00 per square foot
Project Valuation — Covered Porch/Patio/Deck
$20.00 per square foot
Project Valuation — Open-Air Porch/Patio/Deck
$8.00 per square foot
Project Valuation — Interior Remodel / Basement Finish
$20.00 per square foot
Project Valuation — Finished Basement
$27.00 per square foot
Project Valuation — Unfinished Basement
$15.00 per square foot

Review timeline

Plan reviewUnincorporated Laramie County’s published plan-review target
7–10 business days

How long did your Residential Addition, Remodel, Deck/Patio/Porch, and Basement Finish Permit permit actually take in Unincorporated Laramie County?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Foundation / Footing (if applicable)

    Before concrete pour

  2. 2

    Rough Framing

    Before insulation or wall cover

  3. 3

    Rough MEP

    Rough plumbing, mechanical, electrical inspected before covering

  4. 4

    Final

    Required before occupancy of the new/remodeled space

See the full Unincorporated Laramie County inspection guide — scheduling & re-inspection fees →

Tips

  • Laramie County does not list a separate flat-rate 'deck permit' — decks, patios, and porches are charged under the general project valuation chart at a rate that varies by whether the structure is enclosed, covered, or open-air.
  • A deck built to support a roof load requires engineering — plan for a stamped structural submittal in that case.
  • Basement finishes require showing the ENTIRE basement plan, not just the area being finished.

Frequently asked questions

Yes — per the county's Building Department FAQ, a permit and inspections are required to finish a basement.

No. Laramie County charges decks, patios, and porches under its general valuation-based Building Permit Fee schedule, using a per-square-foot rate that depends on whether the structure is enclosed, covered, or open-air (see the Guidance for Residential Projects valuation chart).

Unincorporated Laramie County's published plan-review target for a residential addition, remodel, deck/patio/porch, and basement finish permit is 7–10 business days.

You'll need: Building Permit Application (SmartGov portal); Plot Plan. Depending on your project, Unincorporated Laramie County may also ask for: Residential Additional Work and/or Revision Form. See the required-documents checklist on this page for details on each.

Unincorporated Laramie County requires 4 inspection(s) for a residential addition, remodel, deck/patio/porch, and basement finish permit, in order: Foundation / Footing (if applicable), Rough Framing, Rough MEP, Final. Schedule each through Laramie County Planning and Development Department — Building Division ((307) 633-4303).

Apply through Laramie County Planning and Development Department — Building Division at 3966 Archer Parkway, Cheyenne, WY 82009. Phone: (307) 633-4303, email: building@laramiecountywy.gov. Office hours: Monday–Friday 7:00 AM–5:30 PM (closed Saturday/Sunday); Building Inspection line (307) 633-4615; fax (307) 633-4519. Official information: https://www.laramiecountywy.gov/County-Government/County-Departments/Planning-Development/Laramie-County-Building.

Unincorporated Laramie County, Wyoming has adopted: 2024 International Building Code (IBC) — adopted with amendments effective January 1, 2025 (Laramie County 2024 International Building Code Adoption resolution); 2024 International Residential Code (IRC) — adopted with amendments effective January 1, 2025; Section R105.2 (Work Exempt from Permit) amended by Resolution #251202-14 (passed Dec. 2, 2025) raising the detached accessory-structure permit exemption threshold from 200 to 400 square feet; 2024 International Residential Code Section R303.5.10 amendment — Laramie County provided statutory notice of intent to exempt residential detached accessory buildings without habitable space from the closed-cell spray foam insulation requirements of R306.6 (Resolution dated 9/16/25); 2024 International Fire Code (IFC) — adopted effective April 15, 2025; 2023 National Electrical Code (NEC) — adopted by Laramie County Board of Commissioners resolution at the December 5, 2023 public hearing; IRC Appendix BC — Accessory Dwelling Units (ADU): Laramie County's official ADU construction handout is the 2024 IRC Appendix BC text itself (scanned/distributed as the county's ADU building-code standard). Local amendments apply — see the Unincorporated Laramie County overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-01.

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 Laramie County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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Residential Addition, Remodel, Deck/Patio/Porch, and Basement Finish Permit in other cities

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