This is PermitBase’s published record for Plain City as of 2026-07-19. It has since been superseded — see the current record.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 2026-07-19.
Reviewed 2026-07-08 · Source
Codes adopted
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 2026-07-19 · 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 type | Amount | Notes |
|---|
Detached Accessory Dwelling Unit (DADU) Permit
VerifiedRequired 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 type | Amount | Notes |
|---|---|---|
| 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 citationHideConfirmed 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.' |
Commercial Building Permit
Required for new commercial construction in Plain City. Plain City requires Planning Commission approval of a Non-Residential Site Plan as a prerequisite to the building permit itself — the city publishes a detailed site plan checklist and a $200 Site Plan filing fee — but as with the Residential Building Permit, no dollar-figure valuation-based commercial building permit fee table could be located in any official Plain City source despite an exhaustive search as of 2026-07-19.
Reviewed 2026-07-19 · Source
Requirements
- New commercial or non-residential construction regulated by the current adopted IBC (statewide, per Utah Code § 15A-2-103), subject to Plain City Code § 9-1-1
- Non-Residential Site Plan Plat approval from the Plain City Planning Commission is a prerequisite — the completed application and supporting documents must be submitted at least 30 days prior to a Planning Commission meeting (2nd and 4th Thursdays of the month), per the city's official Site Plan Application (New Construction) packet
- Traffic Impact Analysis, when required by the City Engineer
- A title certificate from a title insurance company or attorney listing all property owners, mortgages, judgments, liens, easements, and agreements of record affecting the plat
- Detailed site plan drawing meeting the city's Site Plan Drawing Requirements: building footprints/elevations, parking (9'x18' minimum, ADA stalls per ANSI A117-1992), fire protection access and hydrant locations, signage, loading areas, solid waste enclosure, and exterior lighting
- All Site Plan Inspection Fee Schedule fees (Engineer, Legal, Planner) must be paid in full before any building permit shall be issued, per the city's official Site Plan Inspection Fee Schedule
Required documents
- RequiredSite Plan Application (New Construction)Official Plain City form (Site Plan Packet, revision April 2026); requires submittal at least 30 days before a Planning Commission meeting, a $200.00 Site Plan fee (User Fees table), and satisfies the Non-Residential Site Plan Plat Checklist.
- RequiredBuilding Permit Application (Online Building Permit Portal)Submitted via Plain City's iworq-hosted Online Building Permit Portal (plaincity_permit.portal.iworq.net) after site plan approval.
- OptionalGrading and Drainage PlanRequired where applicable, per Chapter 11-5-4 of the Subdivision Ordinance; contour map at 1-foot intervals and elevation data, approved by the City Engineer prior to Planning Commission review.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Site Plan Review Fee (Planning Commission prerequisite) | $200.00 | Plain City Site Plan Inspection Fee Schedule (Site Plan Packet, revision April 2026, plaincityutah.gov/DocumentCenter/View/500, page 3): 'Site Plan ... Show full citationHidePlain City Site Plan Inspection Fee Schedule (Site Plan Packet, revision April 2026, plaincityutah.gov/DocumentCenter/View/500, page 3): 'Site Plan ... $200.00' — listed under 'USER FEES' alongside General Plan Amendment Request ($200.00), Rezone Request ($400.00), and Conditional Use Permit ($1,000.00). All Engineer, Legal, and Planner fees are separately billed to the applicant and must be paid in full before any building permit shall be issued. |
| Commercial Building Permit Fee — not published | Not found published | As with Plain City's Residential Building Permit, no dollar-figure valuation-based building permit fee table for commercial/non-residential construction was located despite reviewing the Building… Show full citationHideAs with Plain City's Residential Building Permit, no dollar-figure valuation-based building permit fee table for commercial/non-residential construction was located despite reviewing the Building Department page, the general Fee Schedule (Resolution #2024-07), the Non-Residential Site Plan Plat Checklist, and the amlegal-hosted municipal code as of 2026-07-19. Omitted rather than estimated, per the zero-fabrication policy; contact the Building Department at (801) 731-4908 for a current quote. |
Commercial Tenant Improvement / Tenant Finish Permit
Required for tenant improvement / minor remodel work in an existing commercial building in Plain City where the use does not change. Plain City's process for this scope is its 'Site Plan Application (Existing Commercial Building - same use, minimal remodeling)' — a faster-track site plan review (7-day advance submittal) than the Non-Residential Site Plan Plat Checklist required for new commercial construction (30-day advance submittal).
Reviewed 2026-07-19 · Source
Requirements
- Existing commercial building, same use, minimal remodeling — per Plain City's official 'Site Plan Application (Existing Commercial Building)' form
- Completed application and supporting documents must be submitted at least 7 days prior to a Planning Commission meeting (2nd and 4th Thursdays of the month) — a shorter lead time than the 30-day requirement for new construction
- A detailed site plan showing parking, landscaping, building footprint, and the proposed floor plan for the business, including restrooms, windows, and outside doors, per the official form
Required documents
- RequiredSite Plan Application (Existing Commercial Building)Official Plain City form (Site Plan Existing Packet, revision April 2026, plaincityutah.gov/DocumentCenter/View/508); submitted at least 7 days before a Planning Commission meeting.
- RequiredBuilding Permit Application (Online Building Permit Portal)Submitted via Plain City's iworq-hosted Online Building Permit Portal.
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Site Plan Review Fee (Planning Commission prerequisite) | $200.00 | The Site Plan Application (Existing Commercial Building) form (Doc 508) does not repeat a fee table itself, but Plain City's Site Plan Inspection Fee Schedule (in the companion New Construction… Show full citationHideThe Site Plan Application (Existing Commercial Building) form (Doc 508) does not repeat a fee table itself, but Plain City's Site Plan Inspection Fee Schedule (in the companion New Construction packet, Doc 500, page 3) lists a single generic 'Site Plan ... $200.00' line item under USER FEES that is not restricted to new construction. Used here as the applicable site plan fee for the existing-commercial process; confirm with the Planning Department that the same $200 figure applies to the shorter existing-building track. |
| Commercial Tenant Improvement Permit Fee — not published | Not found published | No dollar-figure valuation-based building permit fee for tenant improvement / commercial remodel work was located in any official Plain City source as of 2026-07-19 — the Fee Schedule (Resolution… Show full citationHideNo dollar-figure valuation-based building permit fee for tenant improvement / commercial remodel work was located in any official Plain City source as of 2026-07-19 — the Fee Schedule (Resolution #2024-07), Building Department page, and both Site Plan Application packets (new construction and existing commercial) were reviewed. Omitted rather than estimated; contact the Building Department at (801) 731-4908. |
Sources & verification
Key facts verified against official sources. Last reviewed 2026-07-08.
Fee schedules
Applications & forms
Codes & ordinances
Department & other records
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.