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Manufactured Home Permit in Unincorporated Washington County, Utah

Required for installation of a manufactured home in unincorporated Washington County. Washington County publishes a flat manufactured home permit fee of $400, with valuation set at $40.00 per square foot.

Verified 2026-06-30 · Source

When you need this permit

  • New manufactured home installation on a permanent foundation
  • Manufactured home relocation to a new site
  • Foundation and utility connections (water, sewer, electric, gas)

Required documents

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Fee schedule

Manufactured Home PermitWashington County Community Development Fees page (washco.utah.gov/departments/community-development/fees/) — 'Manufactured home permit fee: $400.00. Manufactured home Valuation: $40.00 per sq. ft.', verified June 30, 2026.
$400.00
State SurchargeWashington County Community Development Fees page, verified June 30, 2026.
1% of the permit fee ($4.00)

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Washington County building department
~5–14 business days

How long did your Manufactured Home Permit permit actually take in Unincorporated Washington County?

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

Inspection process

  1. 1

    Foundation / Setup

    Foundation or blocking system, tie-downs/anchoring, and utility connections before occupancy

  2. 2

    Final

    All utilities connected, skirting in place, site complete

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

Tips

  • The manufactured home permit fee is a flat $400 (plus 1% state surcharge = $4.00) per the Washington County Community Development fee schedule.
  • Washington County requires the same site prerequisites as stick-built homes: septic approval, proof of water, HCP agreement, and culvert letter.
  • Manufactured home valuation is set at $40.00 per square foot for any valuation-based calculations.

Frequently asked questions

Unincorporated Washington County requires a manufactured home permit for: New manufactured home installation on a permanent foundation; Manufactured home relocation to a new site; Foundation and utility connections (water, sewer, electric, gas). If your project isn't listed, confirm with Washington County Community Development Department (Building Division) at (435) 301-7250 before starting work.

The manufactured home permit fee is a flat $400 (plus 1% state surcharge = $4.00) per the Washington County Community Development fee schedule. Apply online at outpost.washco.utah.gov.

Plan review for a manufactured home permit in Unincorporated Washington County typically runs 5–14 business days. This is an estimate, not a published figure — confirm current review times with Washington County Community Development Department (Building Division) at (435) 301-7250.

You'll need: Online Permit Application; Site Plan; HUD Data Plate / Label. See the required-documents checklist on this page for details on each.

Unincorporated Washington County requires 2 inspection(s) for a manufactured home permit, in order: Foundation / Setup, Final. Schedule each through Washington County Community Development Department (Building Division) ((435) 301-7250).

Apply through Washington County Community Development Department (Building Division) at 111 East Tabernacle St., St. George, UT 84770. Phone: (435) 301-7250. Office hours: Mon–Fri, normal business hours (24-hour advance notice required for inspections). Official information: https://www.washco.utah.gov/departments/community-development/.

Unincorporated Washington County, Utah has adopted: 2024 International Building Code (IBC), including Appendices C and J — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(a); supersedes the 2021 edition previously listed here; 2021 International Residential Code (IRC) — Utah Code § 15A-2-103(1)(b); REMAINS CURRENT, UNCHANGED by the 7/1/2026 amendment; Appendix AQ of the 2021 IRC — statewide per Utah Code § 15A-2-103(1)(c); not itemized on any Washington County page found, added here per statute; 2024 International Plumbing Code (IPC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(d); supersedes the 2021 edition previously listed here; 2024 International Mechanical Code (IMC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(e); supersedes the 2021 edition previously listed here; 2024 International Fuel Gas Code (IFGC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(f); supersedes the 2021 edition previously listed here; 2023 National Electrical Code (NEC) — Utah Code § 15A-2-103(1)(g); UNCHANGED by the 7/1/2026 amendment (NOTE: Washington County's own website has been observed referencing 2020 NEC on older pages; the legally in-force statewide edition is 2023 NEC — no county page is known to have been updated to reflect this); 2024 International Energy Conservation Code (IECC), single unsplit statewide edition — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(h); supersedes the 2021 edition previously listed here; 2024 International Existing Building Code (IEBC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(i); supersedes the 2021 edition previously listed here; Residential provisions of the 2024 International Swimming Pool and Spa Code (ISPSC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(n); supersedes the 2021 edition previously listed here; MBI 1200 and MBI 1205 (manufactured/modular construction standards) — statewide per Utah Code § 15A-2-103(1)(o); not itemized on any Washington County page found, added here per statute; NOTE (2026-07-16 re-verification): The Utah Code § 15A-2-103 version effective 7/1/2026 (superseded 1/1/2027) took effect 15 days before this re-verification. This entry previously described the 2024-cycle codes in future tense ('effective through June 30, 2026' / 'takes effect July 1, 2026'); that date has now passed, so IBC/IPC/IMC/IFGC/IECC/IEBC/residential ISPSC are now stated as CURRENT (2024 editions), while IRC (2021) and NEC (2023) remain unchanged as already correctly stated. No Washington County page listing IBC/IRC/IPC/IMC/IECC editions specifically was found on live re-check of the Community Development FAQ and Building Permit Documents pages (2026-07-16), so there is no city-page lag to record for those codes beyond the pre-existing NEC observation above..

Sources & verification

Verified against official sources. Last reviewed 2026-06-30.

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

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Manufactured Home Permit in other cities

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