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This is PermitBase’s published record for Plain City as of 2026-07-07. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.

Plain City building permits

Plain City, Utah — as published 2026-07-07.

Reviewed 2026-07-08 · Source

Codes adopted

International Building Code (IBC) — adopted per Plain City Code § 9-1-1(A) pursuant to Utah Code Annotated § 58-56-4(2) and Utah Administrative Code R156-56-701, as modified by chapter 11 of the supplement to the IBC promulgated by the International Code Council, and amended per statewide amendments in Utah Administrative Code R156-56-704 (automatically updated per § 9-1-1(C) whenever the Division of Occupational and Professional Licensing/Uniform Building Code Commission adopts new statewide amendments). Per Utah Code § 15A-2-103, the statewide-adopted edition is the 2021 IBC (effective July 1, 2023), with the 2024 IBC taking effect July 1, 2026.International Residential Code (IRC) — adopted by reference within IBC standards per Plain City Code § 9-1-1(A) ('...together with standards incorporated into the IBC by reference, including...the international residential code (IRC) promulgated by the International Code Council'). Statewide-adopted edition is the 2021 IRC per Utah Code § 15A-2-103.International Energy Conservation Code (IECC) — adopted by reference within IBC standards per Plain City Code § 9-1-1(A). Plain City's Residential Building Permit Plan Submittal Requirements (Doc 475) additionally requires a REScheck energy analysis report showing compliance with the model energy code, passing by a minimum of 3% if using the Utah Energy Conservation Method.Statewide plumbing, mechanical, and electrical codes (IPC/IMC/NEC) apply uniformly across Utah municipalities under the State Construction Code (Utah Code Title 15A) but are not separately codified in Plain City's own municipal code sections located during this research; Plain City's plan submittal checklists (Docs 475, Accessory Building Doc) require electrical, plumbing, and mechanical plans as part of the IRC-governed construction drawings, consistent with statewide adoption rather than a distinct local ordinance.

Permit types & fees

Residential Building Permit

Required for new single-family and two-family residential construction and any work regulated by the adopted IRC/IBC in Plain City. Plain City's Building Department (independent of Weber County — staffed by its own Building Inspector) reviews plans against a detailed published submittal checklist, but no dollar-figure valuation-based fee table for building permits was locatable in any official Plain City source as of verification date, despite an exhaustive search of the city's Building Department page, general Fee Schedule (Resolution #2024-07), Residential Building Permit Plan Submittal Requirements, and the amlegal-hosted municipal code.

Reviewed 2026-07-08 · Source

Requirements

  • New single-family or two-family residential construction
  • Any work regulated by the current adopted International Residential Code (IRC)
  • Site plan drawn to scale showing lot dimensions, lot size, buildable area, easements, north arrow, footprint of all structures with actual setbacks, retaining wall locations, and all hard-surface areas
  • Construction drawings including all four elevation views, floor plans, electrical/plumbing/mechanical plans, structural plans (footing/foundation, floor framing, shear wall, roof framing) with required stamps and signatures, and structural calculations
  • REScheck energy compliance report (must pass by a minimum of 3% if using the Utah Energy Conservation Method)
  • Storm Water Pollution Prevention Plan (SWPPP) and DEQ Notice of Intent if the building site exceeds 1 acre or is part of a common plan of development
  • Bona Vista water connection receipt and secondary water receipt (Pineview Water or Mountain View Irrigation) showing fees paid
  • Owner/Builder Certificate (completed, signed, notarized) if the project is an owner/builder project

Required documents

  • RequiredResidential Building Permit Plan Submittal Requirements ChecklistOfficial Plain City Building Department checklist covering the building permit application, site plan, construction drawings, REScheck energy compliance, SWPPP, utility receipts, and owner/builder agreement.
  • RequiredBuilding Permit Application (Online Building Permit Portal)Submitted via Plain City's iworq-hosted Online Building Permit Portal (plaincity_permit.portal.iworq.net). Requires applicant/owner/architect/engineer/contractor information, project address, and estimated valuation of the project (cost of materials and labor).
  • OptionalOwner/Builder CertificationRequired only if the project is an Owner/Builder project; must be completed, signed, and notarized.

Fee schedule

Fee typeAmountNotes

Detached Accessory Dwelling Unit (DADU) Permit

Verified

Required for a Detached Accessory Dwelling Unit in Plain City — a detached structure, or a unit above/behind a detached garage, associated with a single-family dwelling. Governed by Plain City Code § 10-21 (adopted by Ord. 2022-10, 7-21-2022). Requires staff approval prior to issuance of the underlying building permit.

Verified 2026-07-08 · Source

Requirements

  • Lot must be at least 18,500 square feet
  • Detached structure, or a unit above/behind a detached garage, associated with a single-family dwelling
  • Owner-occupied; the DADU is not intended for resale and must be sold together with the primary dwelling
  • Unit may not be rented on a transient basis (periods less than 30 days); if used as a longer-term rental, the primary owner must hold a Home Occupation License
  • Address must match the primary dwelling, designated as 'unit B'
  • Comply with all building, fire, and health codes — building permit required, impact fees required
  • Unit at least 10 feet from the primary dwelling; limited to 25% of the rear yard; minimum 25% of the unit located in the rear yard; meets accessory-building setbacks
  • Adequate off-street parking on an approved surface; additional driveways at least 50 feet apart and at least 30 feet from an intersection
  • Utility meter: primary house with a detached unit may have no more than two water, gas, and electricity services, in the property owner's name

Required documents

  • RequiredDetached Accessory Dwelling Unit (DADU) ApplicationOfficial Plain City form (Doc 487) including a Qualifications Checklist against §§ 10-21-2 and 10-21-3, Property Owner's Affidavit, Owner Occupancy Affidavit, and Affidavit acknowledging the DADU shall not be used as a short-term rental. Requires two 11x17 paper copies plus one electronic copy of proposed dimensions/location, utility plan, off-street parking plan, and architectural elevations/floor plans.
  • RequiredCompleted Building Permit Application with engineered plans and plot planRequired in addition to the DADU application itself, per the DADU Application form's document checklist.
  • OptionalHome Occupation License ApplicationRequired only if the DADU will be used as a rental.

Fee schedule

Fee typeAmountNotes
DADU (Detached Dwelling Accessory Dwelling) Filing Fee$50.00
Confirmed by two independent official Plain City sources: (1) the Detached Accessory Dwelling Unit (DADU) Application form (Doc 487), which states 'DADU fee: $50.00' directly on the application; Show full citation

Confirmed by two independent official Plain City sources: (1) the Detached Accessory Dwelling Unit (DADU) Application form (Doc 487), which states 'DADU fee: $50.00' directly on the application; and (2) Plain City Fee Schedule, Resolution #2024-07, Exhibit A, 'Filing Fees' section: 'Detached Dwelling Accessory Dwelling (DADU) fee — $50.00.'

Sources & verification

Key facts verified against official sources. Last reviewed 2026-07-08.

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

Later version (2026-07-19) →View current record →All versions →

Permalink: /utah/weber-county/plain-city-ut/as-of/2026-07-07/

Snapshot date: 2026-07-07

Commit: 6fee8ca

Reproducible from PermitBase’s version-controlled dataset, commit 6fee8ca.