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Residential Addition / Remodel Permit in Rock Springs, Wyoming

Required for additions, remodels, alterations, repairs, and detached garages on existing one- and two-family dwellings in Rock Springs. Charged at 50% of the general valuation-based fee table with no separate plan review fee.

Verified 2026-07-01 · Source

When you need this permit

  • Any enlargement, alteration, or repair of an existing building or structure requires a permit from the Building Official (§ 150.02(A)(1))
  • Applies to residential alterations and additions, including detached garages
  • Design must meet adopted design criteria: 30 psf ground snow load, 115 mph wind speed (Exposure C), 42-inch minimum frost depth for any new foundation work
  • Detached accessory buildings/garages over 1,500 sq ft combined require a conditional use permit before a building permit can be issued (§ 157.129(D)–(E))
  • Contractor must be registered with the City ($125 fee + insurance) if not the homeowner performing their own work

Required documents

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Fee schedule

Residential alterations and additions, including detached garagesRock Springs Municipal Code § 150.08(B)(3)
50% of the general valuation-based fee table in § 150.08(B); no plan review fee charged

Review timeline

Plan reviewTypical estimate — confirm current times with the Rock Springs building department
~10–30 business days

How long did your Residential Addition / Remodel Permit permit actually take in Rock Springs?

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

Inspection process

  1. 1

    Footing / Foundation (if new footings)

    Before concrete pour — below 42-inch frost depth

  2. 2

    Framing

    After framing complete, before insulation or wall cover

  3. 3

    MEP Rough-In

    Electrical, plumbing, mechanical rough-in before walls closed

  4. 4

    Final

    All work complete per approved plans

See the full Rock Springs inspection guide — scheduling & re-inspection fees →

Tips

  • Residential additions/remodels and detached garages get a 50% discount off the standard valuation-based fee table AND no plan review fee — a meaningful savings versus new commercial-type construction.
  • Detached accessory buildings/garages are capped at 1,500 sq ft combined without a conditional use permit (§ 157.129(D)).

Frequently asked questions

Rock Springs requires a residential addition / remodel permit for: Any enlargement, alteration, or repair of an existing building or structure requires a permit from the Building Official (§ 150.02(A)(1)); Applies to residential alterations and additions, including detached garages; Design must meet adopted design criteria: 30 psf ground snow load, 115 mph wind speed (Exposure C), 42-inch minimum frost depth for any new foundation work; Detached accessory buildings/garages over 1,500 sq ft combined require a conditional use permit before a building permit can be issued (§ 157.129(D)–(E)); Contractor must be registered with the City ($125 fee + insurance) if not the homeowner performing their own work. If your project isn't listed, confirm with City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at (307) 352-1540 before starting work.

In Rock Springs, the published Residential alterations and additions, including detached garages is: 50% of the general valuation-based fee table in § 150.08(B); no plan review fee charged. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a residential addition / remodel permit in Rock Springs typically runs 10–30 business days. This is an estimate, not a published figure — confirm current review times with City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at (307) 352-1540.

You'll need: Building Permit Application; Site Plan. Depending on your project, Rock Springs may also ask for: Detail Sheet — Retaining Wall. See the required-documents checklist on this page for details on each.

Rock Springs requires 4 inspection(s) for a residential addition / remodel permit, in order: Footing / Foundation (if new footings), Framing, MEP Rough-In, Final. Schedule each through City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) ((307) 352-1540).

Apply through City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at 212 D Street, Rock Springs, WY 82901. Phone: (307) 352-1540, email: webmaster@rswy.net. Office hours: Mon–Fri, 8:00 a.m. to 5:00 p.m., closed 12:30–1:30 p.m. for lunch. Official information: https://www.rswy.net/departments/public_services/building_inspections_permits.php.

Rock Springs, Wyoming has adopted: 2024 International Building Code (IBC) — with local amendments; adopted per Rock Springs Municipal Code § 150.04, including Appendix E, Appendix I and Appendix J, excluding Chapter 27; 2024 International Residential Code (IRC) — with local amendments per § 150.04(D); including Appendix BF, Appendix B, Appendix C and Appendix CA; excluding R-309, P2904, and several Section R-403.3 subsections/tables/figures; 2024 International Existing Building Code (IEBC) — adopted per § 150.04; 2024 International Mechanical Code (IMC) — with local amendment per § 150.04(C); 2024 International Plumbing Code (IPC) — with local amendment per § 150.04(C); including Appendix D (Degree Day/Design Temperatures), Appendix E (Sizing of Water Pipe Systems) and Appendix C (Structural Safety); 2024 International Fuel Gas Code (IFGC) — including Appendix A, Appendix B and Appendix C; 2024 International Fire Code (IFC) — per City of Rock Springs Building Ordinances page; National Electrical Code, 2023 edition (NFPA) — adopted per § 150.04; enforced locally by the City Electrical Inspector under Rock Springs Municipal Code §§ 150.30–150.36 (city electrical code), NOT the Wyoming State Fire Marshal default program. Local amendments apply — see the Rock Springs overview page for the full list.

Yes. Residential alterations, additions, and detached garages are charged 50% of the general valuation-based fee table under § 150.08(B)(3), with no separate plan review fee.

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 Rock Springs 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 Permit in other cities

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