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Accessory Dwelling Unit (ADU) in Bountiful, Utah

Bountiful City allows both internal and detached ADUs. Internal ADUs are reviewed and approved by City Staff. Detached ADUs are a conditional use requiring Bountiful City Administrative Committee approval prior to the building permit. Apply through Cityinspect.

Verified 2026-07-01 · Source

When you need this permit

  • Internal ADUs: staff-reviewed and approved; apply for building permit directly
  • Detached ADUs: conditional use — obtain Administrative Committee approval first
  • Must comply with Bountiful City Land Use Code (see bountifulutah.gov/planning-and-zoning)
  • Separate entrance from primary dwelling required

Required documents

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Fee schedule

Application Fee — Remodel (internal ADU) or New Home (detached ADU)Bountiful City Ord. 2023-01, Schedule of Rates and Fees FY2023-2024 (eff. May 9, 2023)
$100 remodel or $500 new (credited to total permit cost)
Building PermitGrounded/verified: ADU new construction/internal conversion is treated as standard building-permit work, assessed on project valuation per Bountiful's published fee schedule (Ord. 2023-01, Schedule of Rates and Fees FY2023-2024, eff. May 9, 2023, Engineering Fees — Building Permits section, p.6); ADU program itself re-confirmed live on bountifulutah.gov/Bountiful-City-Planning---ADU-Information 2026-07-01 (internal ADU staff-approved; detached ADU is a conditional use requiring Administrative Committee approval).
Valuation-based per 1997 Uniform Administrative Code (current ICC data)
Plan Review Fee — Residential Single FamilyBountiful City Ord. 2023-01, Schedule of Rates and Fees FY2023-2024 (eff. May 9, 2023)
29% of permit fee
South Davis Metro Fire Impact FeeBountiful City Ord. 2023-01 (eff. May 9, 2023). Utah HB 82 (2021) may reduce or waive impact fees for internal ADUs — confirm with Bountiful Building Dept at (801) 298-6125.
$644 per dwelling unit

Review timeline

Plan reviewTypical estimate — confirm current times with the Bountiful building department
~14–30 business days

How long did your Accessory Dwelling Unit (ADU) permit actually take in Bountiful?

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

Inspection process

  1. 1

    Foundation

    Footings, forms, rebar — before concrete pour

  2. 2

    Framing

    Structure, fire separation between units, egress windows

  3. 3

    MEP Rough-In

    Mechanical, electrical, plumbing rough-ins before walls closed

  4. 4

    Insulation

    Insulation and vapor barrier before drywall

  5. 5

    Final

    All work complete, smoke/CO detectors, address posted, ready for occupancy

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

Tips

  • Bountiful allows both internal ADUs (staff-approved) and detached ADUs (conditional use — Administrative Committee approval required). See bountifulutah.gov/Bountiful-City-Planning---ADU-Information.
  • Utah HB 82 (2021) requires cities to allow internal ADUs and may reduce or waive impact fees — confirm current impact fee treatment with Building Dept at (801) 298-6125.
  • Basement ADUs must have egress windows in every bedroom — 5.7 sq ft minimum opening per 2021 IRC R310.
  • A rental business license from Bountiful is typically required before renting an ADU — contact Planning at (801) 298-6190.

Frequently asked questions

Bountiful requires an accessory dwelling unit (adu) permit for: Internal ADUs: staff-reviewed and approved; apply for building permit directly; Detached ADUs: conditional use — obtain Administrative Committee approval first; Must comply with Bountiful City Land Use Code (see bountifulutah.gov/planning-and-zoning); Separate entrance from primary dwelling required. If your project isn't listed, confirm with Bountiful City Building Department at (801) 298-6125 before starting work.

ADU permits use valuation-based fees plus 29% plan review and a $100 (internal remodel) or $500 (new detached) application fee credited to permit cost. A South Davis Metro Fire impact fee of $644 per unit may apply; under Utah HB 82 this may be reduced or waived for internal ADUs. (Ord. 2023-01, eff. May 9, 2023)

Plan review for an accessory dwelling unit (adu) permit in Bountiful typically runs 14–30 business days. This is an estimate, not a published figure — confirm current review times with Bountiful City Building Department at (801) 298-6125.

You'll need: Building Permit Application (Cityinspect); Construction Plans; Site Plan. See the required-documents checklist on this page for details on each.

Bountiful requires 5 inspection(s) for an accessory dwelling unit (adu) permit, in order: Foundation, Framing, MEP Rough-In, Insulation, Final. Schedule each through Bountiful City Building Department ((801) 298-6125).

Apply through Bountiful City Building Department at 795 South Main Street, Bountiful, UT 84010. Phone: (801) 298-6125, email: tbasinger@bountiful.gov. Office hours: Mon–Thu 7:00 AM – 6:00 PM (permits issued until 5:30 PM); closed Fri–Sun. Official information: https://www.bountifulutah.gov/Building.

Bountiful, Utah has adopted: 2021 International Residential Code (IRC) with Appendices AE and AQ — residential construction; as adopted by the State of Utah (Utah Code § 15A-2-103(1)(b)/(k)/(c)); unaffected by the 7/1/2026 statute revision, continues in force; Bountiful Design Criteria, rev. Oct 13, 2025; 2015 International Residential Code Chapter 11 (residential energy provisions) — per Bountiful Design Criteria, rev. Oct 13, 2025 (statewide residential energy baseline per Utah Code § 15A-2-103); 2024 International Building Code (IBC) with Appendices C and J — commercial construction; Utah Code § 15A-2-103(1)(a); effective 2026-07-01, superseded the 2021 edition; 2024 International Mechanical Code (IMC) — commercial; Utah Code § 15A-2-103(1)(e); effective 2026-07-01, superseded the 2021 edition; 2024 International Plumbing Code (IPC) — commercial; Utah Code § 15A-2-103(1)(d); effective 2026-07-01, superseded the 2021 edition; 2024 International Fuel Gas Code (IFGC) — commercial; Utah Code § 15A-2-103(1)(f); effective 2026-07-01, superseded the 2021 edition; 2024 International Energy Conservation Code (IECC) — commercial; Utah Code § 15A-2-103(1)(h); effective 2026-07-01, superseded the 2021 edition; 2024 International Existing Building Code (IEBC) — Utah Code § 15A-2-103(1)(i); effective 2026-07-01, superseded the 2021 edition; 2021 International Fire Code (IFC) — commercial; Bountiful Design Criteria, rev. Oct 13, 2025; 2024 International Swimming Pool and Spa Code (ISPSC), residential provisions — Utah Code § 15A-2-103(1)(n); effective 2026-07-01, superseded the 2021 edition; CONFIRMED 2026-07-17: the live Bountiful Design Criteria PDF (still dated Rev. October 13, 2025, unchanged/not reissued) explicitly lists '2021 International Swimming Pool and Spa Code' — the city has NOT yet published an updated Design Criteria reflecting the 2024 ISPSC (or the other 2024 commercial code editions) despite the statute taking effect 2026-07-01; the statutory 2024 editions govern by operation of Utah Code regardless, but Bountiful's own summary sheet is stale on this point — call (801) 298-6125 to confirm practical enforcement if this matters for a specific project; 2023 National Electrical Code (NEC) — Utah Code § 15A-2-103(1)(g); unaffected by the 7/1/2026 statute revision, continues in force; Bountiful Design Criteria, rev. Oct 13, 2025; NOTE: Effective July 1, 2026 (now in force) — 2024 editions of IBC, IPC, IMC, IFGC, IECC, IEBC, and ISPSC (residential provisions) replaced the 2021 editions per Utah Code § 15A-2-103 (version effective 7/1/2026, superseded 1/1/2027; text independently re-verified live at le.utah.gov 2026-07-16). The 2021 IRC and 2023 NEC were unaffected and remain in force.. Local amendments apply — see the Bountiful overview page for the full list.

Yes. Bountiful allows both internal ADUs (staff-approved) and detached ADUs (conditional use requiring Administrative Committee approval). See bountifulutah.gov/Bountiful-City-Planning---ADU-Information.

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

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