Accessory Dwelling Unit (ADU) Business License / Registration in Vineyard, Utah

Vineyard requires an accessory dwelling unit (adu) business license / registration permit for: Detached ADUs require a lot of at least 12,000 sq ft; ADUs within a home require a minimum 5,200 sq ft lot, and must comply with applicable building and fire codes; Minimum of 4 onsite parking spaces on a paved surface; driveways must be at least 18 feet long to count toward this requirement, with all spaces at least 8 feet wide; Occupancy limited to one family or up to four unrelated individuals; Application submitted through City Inspect's Business Licenses module, selecting 'Accessory Dwelling Unit (ADU)' as the permit type; Parking plan and floor layout showing total ADU square footage must be uploaded with the application; Planning and Zoning Department inspection required after submission and documentation review; Biennial renewal required, with re-inspection at renewal. If your project isn't listed, confirm with Vineyard Building Department at (801) 226-1929 before starting work.

In Vineyard, the published Accessory Dwelling Unit Business License — Initial Fee (Biennial) is: $100.00. Additional published fees: Accessory Dwelling Unit Business License — Renewal Fee — $50.00; Accessory Dwelling Unit Re-Inspection Fee — $85.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Vineyard does not publish a plan-review timeline for this permit. Contact Vineyard Building Department at (801) 226-1929 for current turnaround.

You'll need: ADU Business License Application (City Inspect Business Licenses module). See the required-documents checklist on this page for details on each.

Vineyard requires 1 inspection(s) for an accessory dwelling unit (adu) business license / registration permit, in order: Planning and Zoning Department Inspection. Schedule each through Vineyard Building Department ((801) 226-1929).

Apply through Vineyard Building Department at 707 E Mill Rd, Suite 202, Vineyard, UT 84058. Phone: (801) 226-1929, email: building@vineyardutah.gov. Office hours: Mon–Thu 8:00 AM – 5:00 PM; Fri 8:00 AM – 12:00 PM, per the city's official Building Department page. Inspections are conducted Monday through Friday, 8:00 AM–5:00 PM; same-day inspection requests are not accepted; inspections can be requested through the online permitting system or by calling (801) 226-1929 during normal business hours (voicemail requests are not honored).. Official information: https://www.vineyardutah.gov/government/building.php.

Vineyard, Utah has adopted: 2021 Utah State Residential Code (Utah's amended version of the 2021 IRC), adopted statewide under Utah Code § 15A-2-103(1)(b) — REMAINS CURRENT, UNCHANGED by the 7/1/2026 statewide amendment. Vineyard City's own official 'Climatic and Geographic Design Criteria for Residential Construction in Vineyard' document (live-checked 2026-07-16, unchanged) states: 'Vineyard City utilizes the following building codes for residential construction: 2021 Utah State Residential Code Building Code as adopted by Utah Code Title 15A,' with online code reference https://codes.iccsafe.org/content/UTRC2021P1.; Appendix AQ of the 2021 IRC — statewide per Utah Code § 15A-2-103(1)(c); not itemized in Vineyard's own Design Criteria document, added here per statute.; 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. Vineyard's own 'Special Inspection Agreement (2021 IBC)' form title still references the 2021 IBC by name — that form's title has not been confirmed updated as of this re-verification, but the statute governs the applicable construction-code edition regardless of the form's title.; 2024 International Plumbing Code (IPC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(d); not previously itemized in this file, added here per statute since Vineyard's own materials do not separately publish trade-code editions.; 2024 International Mechanical Code (IMC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(e); not previously itemized in this file, added here per statute.; 2024 International Fuel Gas Code (IFGC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(f); not previously itemized in this file, added here per statute.; 2023 National Electrical Code (NEC) — Utah Code § 15A-2-103(1)(g); UNCHANGED by the 7/1/2026 amendment. CORRECTED: this file previously stated the statewide NEC edition as '2020 NEC' in a summary paragraph describing the pre-7/1/2026 code cycle — that figure was not sourced from any Vineyard city document (no Vineyard page or form found referencing an NEC edition at all) and is superseded here by the statute's actual current 2023 edition.; 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 referenced in this file's summary paragraph.; 2024 International Existing Building Code (IEBC) — statewide per Utah Code § 15A-2-103(1)(i); not previously itemized in this file, added here per statute.; Residential provisions of the 2024 International Swimming Pool and Spa Code (ISPSC) — statewide per Utah Code § 15A-2-103(1)(n); not previously itemized in this file, added here per statute.; MBI 1200 and MBI 1205 (manufactured/modular construction standards) — statewide per Utah Code § 15A-2-103(1)(o); not previously itemized in this file, added here per statute.; Vineyard's official Design Criteria document additionally publishes the city's own climatic/geographic design parameters used alongside the adopted residential code: 31 psf± ground snow load, 100 mph wind speed, Seismic Design Category D, Severe weathering, 30" frost line depth, Zone 1,500-or-less air freezing index, and ice-barrier underlayment required.; NOTE (2026-07-16 re-verification): Utah Code § 15A-2-103, version effective 7/1/2026 (superseded 1/1/2027), took effect 15 days before this re-verification. IBC/IPC/IMC/IFGC/IECC/IEBC/residential ISPSC are now 2024 statewide; IRC (2021 Utah State Residential Code) and NEC (2023) did NOT change. This re-verification corrected two genuine defects: (1) the prior entry's undated summary paragraph asserted a bare '2020 NEC,' which was not traceable to any Vineyard source and is corrected to the statute's actual 2023 edition; (2) IPC, IMC, IFGC, IEBC, and residential ISPSC were entirely absent from this file's prior codesAdopted list despite being statute-mandated statewide, and are added here. Vineyard's own Design Criteria document was re-fetched live 2026-07-16 and is unchanged — it lists only the 2021 Utah State Residential Code and does not itemize IBC/IPC/IMC/IFGC/IECC/IEBC/NEC editions, so it presents no page-vs-statute conflict for those codes beyond the 'Special Inspection Agreement (2021 IBC)' form-title lag noted above.. Local amendments apply — see the Vineyard overview page for the full list.

Per the city's official Community Development page, ADU applications are submitted through City Inspect's Business Licenses module (selecting 'Accessory Dwelling Unit (ADU)' as the permit type), with a parking plan and floor layout showing total ADU square footage uploaded. The Planning and Zoning Department then conducts an inspection. The initial license fee is $100 ($103 by credit card), with biennial renewal at $50 plus re-inspection.