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Residential Building Permit (New Single-Family Residence) in Unincorporated Laramie County, Wyoming

Required for construction of a new single-family residence in unincorporated Laramie County, including manufactured/modular homes placed on a foundation. Governed by the 2024 IRC as adopted effective January 1, 2025, with the county's own climatic/geographic design criteria table.

Verified 2026-07-01 · Source

When you need this permit

  • Apply online via the Laramie County, WY Public Portal (SmartGov)
  • Foundation plans must be stamped by a Wyoming Design Professional and be site-specific (legal description), OR use the county's pre-approved Laramie County Foundation Standards where applicable
  • Plot plan meeting the county's minimum plot-plan requirements
  • Full plan set with all rooms labeled, all dimensions shown, and location of underslab utilities and mechanical rooms in the basement
  • IRC Letter required for modular homes stating the building and electrical code the home was built to
  • Design must account for county Table R301.2(1): 32 lb/ft² ground snow load, 105 mph Vult wind, Seismic Design Category A–B, 36-inch minimum frost depth
  • Ownership documentation (recorded warranty deed) required if ownership changed within the past 6 months, or if this is the first structure built on the property
  • Plan review typically 7–10 business days from a complete submittal per the county's Building Department FAQ

Required documents

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Fee schedule

Building Permit Fee — valuation $1–$1,000Laramie County Building Permits — 2022 Building and Plan Review Fee Schedule (cited on the county's Building Permit Handouts and Fee Schedule page)
$75.00
Building Permit Fee — valuation $95,001–$100,000Laramie County 2022 Building and Plan Review Fee Schedule
$1,150.00
Building Permit Fee — valuation $100,001–$500,000Laramie County 2022 Building and Plan Review Fee Schedule
$1,150.00 for the first $100,000 plus $5.41 for each additional $1,000 or fraction thereof, including $500,000
Building Permit Fee — valuation $500,001–$1,000,000
$3,855.00 for the first $500,000 plus $4.78 for each additional $1,000 or fraction thereof, including $1,000,000
Building Permit Fee — valuation over $1,000,000
$6,245.00 for the first $1,000,000 plus $3.52 for each additional $1,000 or fraction thereof
Plan Review FeeLaramie County 2022 Building and Plan Review Fee Schedule
65% of the Building Permit Fee, charged in addition to the Building Permit Fee
Project Valuation — 1st FloorLaramie County Guidance for Residential Projects — Project Valuation Calculation chart
$85.00 per square foot
Project Valuation — 2nd/3rd Floor or Bonus Room
$43.00 per square foot

Review timeline

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

How long did your Residential Building Permit (New Single-Family Residence) 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

    Underground / Under-slab

    All underground work must be inspected before covering

  2. 2

    Rough Framing

    Framing inspected before insulation or wall cover

  3. 3

    Rough Plumbing / Rough HVAC / Rough Electrical / Rough Gas Piping

    All rough trade work must be inspected before it is covered or turned on

  4. 4

    Final

    Required before occupancy; occupancy is authorized only by the Building Official — placement of personal belongings is itself considered occupancy

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

Tips

  • Inspections are generally scheduled within 2 business days of request (call the inspection line (307) 633-4615 or use the online portal form); provide permit #, project address, contact name/phone, inspection type, and ready date.
  • The building permit must be displayed in a visible location on site along with a copy of approved plans and a clearly visible address for every inspection.
  • A Temporary Certificate of Occupancy (TCO) may be issued in writing (non-refundable fee, signed by applicant and county staff) if only minor corrections remain after final inspections and life-safety items are met; moving personal property in without a TCO or final occupancy can result in a $750/day fine.
  • Do not start work before the permit is issued — per the county FAQ, this is not allowed even after the application is submitted and fees are paid.

Frequently asked questions

Yes. The Laramie County Board of Commissioners has adopted building codes requiring permits and inspections for essentially all construction, including new single-family residences.

In Unincorporated Laramie County, the published Building Permit Fee — valuation $1–$1,000 is: $75.00. Additional published fees: Building Permit Fee — valuation $95,001–$100,000 — $1,150.00; Building Permit Fee — valuation $100,001–$500,000 — $1,150.00 for the first $100,000 plus $5.41 for each additional $1,000 or fraction thereof, including $500,000; Building Permit Fee — valuation $500,001–$1,000,000 — $3,855.00 for the first $500,000 plus $4.78 for each additional $1,000 or fraction thereof, including $1,000,000; Building Permit Fee — valuation over $1,000,000 — $6,245.00 for the first $1,000,000 plus $3.52 for each additional $1,000 or fraction thereof; Plan Review Fee — 65% of the Building Permit Fee, charged in addition to the Building Permit Fee; Project Valuation — 1st Floor — $85.00 per square foot; Project Valuation — 2nd/3rd Floor or Bonus Room — $43.00 per square foot. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Unincorporated Laramie County's published plan-review target for a residential building permit (new single-family residence) is 7–10 business days.

You'll need: Building Permit Application (SmartGov portal — co-laramie-wy.smartgovcommunity.com); Plot Plan; Foundation Plans; Building Plans. Depending on your project, Unincorporated Laramie County may also ask for: IRC Letter (modular/manufactured homes); Recorded Warranty Deed. See the required-documents checklist on this page for details on each.

Unincorporated Laramie County requires 4 inspection(s) for a residential building permit (new single-family residence), in order: Underground / Under-slab, Rough Framing, Rough Plumbing / Rough HVAC / Rough Electrical / Rough Gas Piping, 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.

Yes — per the county's Building Department FAQ, a homeowner may perform all of the work, including electrical, on their own primary residence, as long as it is built to the adopted codes. Only electricians working for other people must be licensed through the Wyoming Dept. of Fire Prevention and Electrical Safety.

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 Building Permit (New Single-Family Residence) in other cities

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