This Bountiful ADU guide helps homeowners understand local ADU rules, likely cost ranges, permit considerations, and builder options before requesting quotes. Start with a free property check to see whether your Bountiful property may be a fit for an internal ADU, basement ADU, garage conversion, attached ADU, or detached ADU.
ADU Rules in Bountiful, Utah
Last verified: January 2026 · Always confirm with Bountiful before design or construction.
| Internal / attached ADU | Permitted under current Bountiful code (subject to zoning) — verify with Bountiful |
|---|---|
| Detached ADU (today) | Permitted under current Bountiful code (subject to zoning) — verify with Bountiful |
| Garage conversion | Permitted under current Bountiful code (subject to zoning) — verify with Bountiful |
| Maximum ADU size | Up to 900 sq ft |
| Minimum lot size | 6,000 sq ft |
| Parking | One additional off-street space required |
| Owner occupancy | Required |
| Short-term rental use | Not allowed |
| Permit path | 4-8 week review · est. permit fee $2,500 - $5,500 · est. impact fee $2,000 - $4,500 |
| Utah state law | Internal ADUs in single-family zones are governed by Utah Code §10-21-303 (formerly §10-9a-530). |
| Official source | Bountiful City Municipal Code |
2026 detached ADU law: Under Utah Code §10-21-304 (effective Oct. 1, 2026), qualifying municipalities must permit a detached ADU on a lot of at least 11,000 sq ft that has a single-family dwelling, subject to listed local restrictions. Whether your Bountiful property qualifies depends on lot size, zone, and city implementation — verify with Bountiful before relying on it.
Why Bountiful Homeowners Choose Utah ADU Builders
Local Expertise
Builder partners understand Bountiful's unique ADU zoning requirements including setback requirements, height restrictions, and design standards specific to Bountiful. A streamlined permit process and strong local relationships with Bountiful building departments ensure efficient project approvals.
Proven Track Record
Builder partners have completed multiple ADU projects in Bountiful, including detached ADU construction and garage conversion builds. Construction timelines vary by project complexity and scope. Bountiful clients may experience property value considerations.
Special Bountiful Offer
Free ADU permit handling for Bountiful residents
Free permit handling service when you start your Bountiful ADU project this quarter. Includes zoning compliance and building department coordination.
ADU Services Available in Bountiful
Choose the perfect ADU solution for your Bountiful property. All services include full permit handling and compliance with Bountiful zoning requirements.
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