Commercial Tenant Improvement Permit in Rock Springs, Wyoming
VerifiedRequired for interior remodels, additions, and tenant improvements in commercial buildings in Rock Springs. Governed by the 2024 IBC as adopted by § 150.04. Charged under the general valuation-based fee schedule; new projects/additions of 5,000 sq ft or larger trigger the full nonresidential checklist (Wyoming-licensed design professionals for architectural, structural, mechanical/plumbing, and electrical plans).
Verified 2026-07-01 · Source
When you need this permit
- A building permit is required for commercial remodels, additions, or tenant improvements (§ 150.02(A)(1))
- Two sets of construction drawings required; for new structures/additions ≥5,000 sq ft: architectural plans stamped by a Wyoming registered architect, structural plans sealed by a Wyoming-licensed structural/civil engineer, mechanical/plumbing plans sealed by a Wyoming-licensed mechanical engineer, and electrical plans sealed by a Wyoming-licensed electrical engineer
- Two sets of project specifications, if available
- Site-specific soils investigation complying with 2024 IBC Section 1802; foundation design must be based on the soils report
- Design loads shown on plans: 30 psf ground snow load, 115 mph wind speed (Exposure C), 42-inch minimum frost depth
- Occupancy Group/Division and Type of Construction (per 2024 IBC) must be listed on the plans
- Mine Subsidence classification must be listed per the adopted Mine Subsidence Risk Map — contact City Engineering (307-352-1540)
- Dimensioned site plan showing utilities, setbacks, streets, alleys, and parking; contact the City Planner for zoning/floodplain requirements (307-352-1540)
- Restaurants/food service facilities must submit plans to the Sweetwater County Health Department
- Grease traps, sand/grease interceptors, or special sewage treatment require approval from the City's Pretreatment and Collections Supervisor (307-352-1466)
- Any code-mandated DEQ permits must be obtained/submitted before the building permit is approved and issued
- Two full sets and one electronic set of plans amended per plan review comments must be submitted prior to permit issuance
Required documents
- Req
Building Permit Application
City of Rock Springs Building Permit Application, with special approvals routing for Zoning, Fire, Engineering, Soil Report, and Health Dept.
- Req
Nonresidential Building Permit Application Checklist
City of Rock Springs' checklist for any new project that is not a single-family home (per the Building Ordinances page)
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Commercial building/tenant improvement permit fee (valuation-based) | Charged under the § 150.08(B) general valuation-based fee schedule — same table used for residential new construction, scaled by project valuation | § 150.08(A): the fee schedule applies to all adopted codes for commercial/nonresidential work; no commercial-specific override exists in § 150.08(B), so the general table applies in full (not the 50% residential-alteration rate, which is limited to residential alterations/additions) |
| Plan Review Fee | 65% of the building permit fee | § 150.08(B)(1) |
| Additional plan review (changes/revisions to plans) | $59 per hour (minimum charge: one-half hour) | § 150.08(B), Other Inspections and Fees table |
| Outside consultants for plan checking/inspections | Actual costs (including administrative and overhead costs) | § 150.08(B), Other Inspections and Fees table, note 2 |
Review timeline
~10–30 business days
Typical estimate — confirm current times with the Rock Springs building department
Inspection process
- 1
Foundation
Per soils report recommendations; below 42-inch frost depth
- 2
Framing / Structural
Structural connections and fire separation assemblies verified
- 3
MEP Rough-In
Mechanical, electrical (City Electrical Inspector), plumbing rough-in
- 4
Final / Certificate of Occupancy
All work complete, ready for occupancy
Tips
- Commercial/nonresidential projects that are NOT single-family homes must submit the full nonresidential checklist — including Wyoming-licensed design professional stamps once the project reaches 5,000 sq ft.
- Mine Subsidence classification is a Rock Springs-specific wrinkle (mining history in the area) — check with City Engineering before finalizing foundation design.
- Food service / restaurant tenant improvements require a parallel submittal to the Sweetwater County Health Department, not just the city.
Frequently asked questions
- Do commercial tenant improvements need a Wyoming-licensed engineer's stamp in Rock Springs?
- For new structures and additions of 5,000 sq ft or larger, yes — architectural plans need a Wyoming registered architect's stamp, and structural, mechanical/plumbing, and electrical plans each need the respective Wyoming-licensed engineer's seal, per the City's Nonresidential Building Permit Application checklist.
Sources & verification
Verified against official sources. Last reviewed 2026-07-01.
- City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) — official building department
- City of Rock Springs Building Ordinances (nonresidential checklist)
- Rock Springs Municipal Code § 150.08 Fees for Permits
- Rock Springs Municipal Code § 150.04 Codes Adopted; Modifications
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 Rock Springs building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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