Utah HOA ADUs & Modifications

Key Findings

• Utah runs two statutes, not one. The Community Association Act (Title 57, Chapter 8a) covers non-condominium residential associations, and the Condominium Ownership Act (Title 57, Chapter 8) covers condominiums. Utah is not a UCIOA state, so most modification questions come back to the recorded declaration, and then to a set of statutory carve-outs that sit on top of it.
• Utah writes more HOA-reaching carve-outs into its code than people assume. You will find a declaration-versus-rule solar rule (§ 57-8a-701), a state flag provision (§ 57-8a-219), a statutory right to build and rent an internal accessory dwelling unit inside a home (§§ 57-8a-209(10) and 57-8a-218(16)), an electric-vehicle-charging statute (§§ 57-8a-801/802), and a water-wise landscaping mandate (§ 57-8a-218(15)).
• A Utah board cannot ban solar by rule on a detached dwelling. A declaration-level prohibition takes a supermajority to add, and an HOA cannot prohibit an internal ADU inside an existing home. Detached ADUs, additions, and most exterior changes still answer to the declaration, subject to the federal overlays: the U.S. flag, OTARD, the FHA, and the ADA.

Details

The legal framework

The two statutes

Utah splits its residential common-interest communities between two statutes. The Community Association Act, Utah Code § 57-8a-101 et seq., governs how residential associations form, run, and exercise power, and it works as the catch-all for every non-condominium residential association inside an association's jurisdiction.¹ The Condominium Ownership Act, Utah Code § 57-8-1 et seq., governs condominium associations; a project falls under the Act if its declaration says the Act applies or, failing that, if its plats are designated as condominium plats.² Utah has not adopted the Uniform Common Interest Ownership Act, so the first move in any modification question is to figure out which community you are dealing with: a condominium under Chapter 8, or a non-condominium residential association under Chapter 8a. Most associations are also nonprofit corporations under the Utah Revised Nonprofit Corporation Act, Title 16, Chapter 6a.

Architectural review is a creature of the declaration. In a non-condominium association, the board may adopt rules and design criteria under § 57-8a-217, subject to owner disapproval rights, and any rule has to be reasonable and treat similarly situated owners the same way under § 57-8a-218.³ One statutory touchpoint for physical changes is § 57-8a-222, which covers removing or altering a partition, or creating an aperture, between dwelling units on adjoining lots; the condominium analog sits in Chapter 8.⁴ Utah courts treat recorded CC&Rs as a contract between the association and its owners, and they presume the CC&Rs are reasonable because owners approved and recorded them, which tracks § 57-8-10(1) and its requirement that a declaration contain covenants that are "enforceable equitable servitudes, where reasonable."⁵ When an architectural committee approves or denies a request, the Utah Court of Appeals said in Fink v. Miller that the decision must be "reasonable and made in good faith and must not be arbitrary or capricious."⁶ On enforcement, § 57-8a-213 tells a board to use its reasonable judgment and lets it decline to enforce after a fair review, but it bars the board from acting arbitrarily, capriciously, or against public policy.⁷

Every association has to register with the Utah Department of Commerce within 90 days of recording its declaration under § 57-8a-105 (the condominium analog is § 57-8-13.1). This is a filing obligation, not full operational regulation. But watch the consequence: during any period of noncompliance, the association's assessment lien cannot arise or be enforced, which makes registration a practical prerequisite to collecting.⁸

Solar, flags, and other categories

Solar is the anchor category, and everything turns on the difference between a declaration and a rule. Under § 57-8a-701, a "detached dwelling" is one in which the association holds no ownership interest in the roof. No governing document other than a declaration may prohibit the owner of a lot with a detached dwelling from installing a solar energy system; solar restrictions on such an owner have to come from the declaration or an association rule, and only the declaration may impose an outright prohibition. After HB 119 (2025), an association may not amend the declaration to add a new prohibition unless it approves that prohibition by at least 67% of allocated voting interests, and it may amend an existing declaration prohibition by at least 51%.⁹ A declaration or a rule may impose a restriction short of a prohibition, and may require compliance with building and safety standards, but only if the restriction cuts the system's production and its installation cost by 5% or less. This is a qualified, declaration-sensitive rule, not a blanket void of every prohibition.

Flags carry state-level protection on top of federal law. Under § 57-8a-219, an association may not stop a lot owner from displaying a United States flag inside a dwelling, in a limited common area, or on a lot, so long as the display complies with 4 U.S.C. Chapter 1, though the association may restrict flag display on the common areas.¹⁰ For condominiums, the state flag protection runs through the Display of Flag Act, Title 57, Chapter 24.¹¹

Utah does have HOA-specific statutes on EV charging and on landscaping, contrary to a common assumption. An association may not prohibit a lot owner from installing an electric vehicle charging system in a parking space on the owner's lot, or in a limited common area set aside for the owner's exclusive use, though it may require an application and impose conditions (§ 57-8a-802; condominium analog § 57-8-8.2).¹² Separately, § 57-8a-218(15) requires an association to adopt rules that support water-wise landscaping for lot-maintained areas, including low-water-use provisions during drought.³ The practical effect is the same each time: a modification request in one of these categories answers first to the statutory carve-out, and only then to the declaration.

ADUs and federal overlays

Accessory dwelling units get addressed at two layers. At the municipal-zoning layer, HB 82 (2021) enacted Utah Code § 10-9a-530 (and county analog § 17-27a-526), requiring municipalities and counties to allow an internal ADU — a unit inside an existing single-family dwelling — as a permitted use in residential zones, subject to conditions such as parking and licensing.¹³ HB 82 also amended the Community Association Act: under §§ 57-8a-209(10) and 57-8a-218(16), an HOA may not prohibit an owner from constructing an internal ADU, and may not restrict or prohibit its rental, as long as the unit complies with the applicable land use, building, health, and fire codes.¹⁴ Detached ADUs are a different story; they stay subject to the declaration and may be prohibited by an HOA even where a city allows them.¹⁵ So Utah reaches internal ADUs by statute but stops short of the full ADU preemption you see in California, where Civil Code § 4751(a) (added by AB 670, effective January 1, 2020) voids any governing-document provision that "effectively prohibits or unreasonably restricts" an ADU on a single-family lot, and in Colorado (HB 24-1152) — because Utah's protection reaches only internal units.¹⁶

Four federal overlays bind every Utah association, whatever state law says. The Freedom to Display the American Flag Act of 2005 protects the U.S. flag, and it is distinct from § 57-8a-219.¹⁷ The FCC's OTARD Rule, 47 C.F.R. § 1.4000, protects antennas and satellite dishes.¹⁸ The Fair Housing Act, 42 U.S.C. § 3604(f)(3), requires associations to permit reasonable modifications for disability at the resident's expense.¹⁹ And ADA Title III reaches common-area facilities that qualify as public accommodations.²⁰

Compliance obligations created by the framework

A. Architectural review process obligations

• Review authority and standards come from the declaration, exercised through § 57-8a-217 design criteria and the § 57-8a-218 limits on rules. (STATE STATUTE and DECLARATION; NON-CONDOMINIUM ASSOCIATIONS; condominiums rely on the declaration plus § 57-8-8.1.)³
• A denial must be in writing and, after the changes HB 217 (2025) made, must name each governing-document provision the board relies on and the specific nonconforming part of the plan; a plan-review fee may not exceed the actual cost of review under § 57-8a-109. (STATE STATUTE; NON-CONDOMINIUM ASSOCIATIONS, with a condominium analog at § 57-8-6.7.)²¹
• Physical alterations that affect a shared partition or aperture between adjoining-lot dwellings are governed by § 57-8a-222. (STATE STATUTE; NON-CONDOMINIUM ASSOCIATIONS.)⁴
• The association must keep its registration with the Department of Commerce current and, since HB 217, renew it every year. (STATE STATUTE; both statutes, via § 57-8a-105 and § 57-8-13.1.)⁸

B. Modifications the association must permit

• Solar on a detached dwelling: no rule or non-declaration document may prohibit it; only the declaration may prohibit, with at least 67% to add a new prohibition and at least 51% to amend an existing one, and a permitted restriction may not cut production or cost by more than 5% (§ 57-8a-701). This is not a blanket right. (STATE STATUTE; NON-CONDOMINIUM ASSOCIATIONS.)⁹
• The U.S. flag on an owner's lot, dwelling interior, or limited common area (§ 57-8a-219; condominium via Title 57, Chapter 24). (STATE STATUTE; both statutes.)¹⁰
• EV charging in an owner's parking space or exclusive-use limited common area (§ 57-8a-802; § 57-8-8.2). (STATE STATUTE; both statutes.)¹²
• Antennas and dishes (OTARD), disability modifications at resident expense (FHA), and access to qualifying common-area public accommodations (ADA). (FEDERAL overlays; both statutes.)¹⁸

C. ADU obligations and limits on HOA authority

• An HOA may not prohibit construction of a compliant internal ADU (§ 57-8a-218(16)) or restrict its rental (§ 57-8a-209(10)); the municipal mandate (§ 10-9a-530) runs in parallel at the zoning level. (STATE STATUTE; NON-CONDOMINIUM ASSOCIATIONS.)¹⁴
• Detached ADUs stay subject to the declaration and may be prohibited within an association. (DECLARATION; both statutes.)¹⁵

D. Enforcement, dispute resolution, and appeal obligations

• Assessment liens and foreclosure follow the Community Association Act's lien and nonjudicial-foreclosure procedures (§§ 57-8a-301 through 57-8a-306), and enforcement discretion runs through § 57-8a-213. (STATE STATUTE; NON-CONDOMINIUM ASSOCIATIONS, with condominium analogs in Chapter 8.)⁷
• Follow any pre-suit procedure the declaration requires; the HOA civil path runs from the District Court to the Utah Court of Appeals, with discretionary review by the Utah Supreme Court. (DECLARATION and STATE court structure; both statutes.)²²

Recent legislative and judicial activity

A. Recent bills

Utah's Legislature has treated HOA modification issues as an annual subject, and three bills carry most of the weight here. Two of them, both from 2025, reshaped solar and tightened association administration. The third, from 2021, opened the door to internal accessory dwelling units. None of them hands a board fresh power to say no.

B. Recent appellate rulings

Recent Utah appellate law is thin on covenant enforcement and design review. One 2025 decision involves an association but decides a title-and-authority question, and the more notable architectural-review development of the moment is legislative, not judicial.

C. Active legislative debates

Utah's Legislature keeps returning to HOA modification issues year after year. It has extended solar protections across HB 411 (2023), and then HB 119 and HB 340 (2025), and it has layered EV-charging and water-wise landscaping mandates onto the Community Association Act. Expect more proposals on housing supply, ADUs, and solar access in future sessions.

Recommendations

• Immediate. Inventory the association's governing documents and map each modification category to its controlling source. Move any solar prohibition into the declaration — a rule cannot prohibit — and confirm it carries the required vote; delete rule-level solar, EV, internal-ADU, and flag prohibitions that conflict with statute.
• Near-term. Confirm the annual HOA-registry renewal is on the calendar, because a lapse suspends the assessment lien, and standardize written architectural denials that cite the specific provision and the nonconforming feature under HB 217.
• Ongoing. Treat compliant internal ADUs as permitted while you keep enforcing detached-ADU covenants, and apply the FHA reasonable-modification and OTARD analyses to any request that touches disability access or antennas.
• Benchmarks that change the approach. A new appellate decision squarely on covenant or design-review enforcement, a future amendment that lowers the solar vote thresholds further, or any legislation that extends protection to detached ADUs would each be reason to re-paper the governing documents.

Caveats

• Section 57-8a-701 has been amended repeatedly — in 2017, 2022, 2023, and 2025 — and the vote thresholds and 5% ceiling reflect the current text after HB 119 (2025). Confirm the enacted subsection numbering against the live statute, since the 2025 amendment renumbered several subsections.
• The municipal internal-ADU definition originally enacted at § 10-9a-530 has been affected by land-use recodification, and the cross-reference in § 57-8a-218(16) now points to the recodified municipal and county sections. The substance — internal ADUs protected, detached ADUs not — has not changed.
• No recent Utah appellate decision squarely resolves covenant-enforcement or architectural-control questions in the 2023–2026 window; the featured case involves an HOA but decides a title-and-authority question. We flag that rather than overstate it.
• Utah does not license community association managers; managers were exempted from property-manager licensing, so no CAM license applies.
• This page is regulatory intelligence, not legal advice. Confirm current statutory text at le.utah.gov and current case status before acting; this analysis reflects Utah law as of July 16, 2026.

National positioning and related coverage

Utah sits among the bespoke two-statute states, running a Community Association Act and a Condominium Ownership Act rather than a unified code, and it is not a UCIOA state. What sets Utah apart is the density of statutory carve-outs layered onto a declaration-driven framework: a declaration-versus-rule solar rule with a supermajority mechanic, a state flag-display provision, statutory EV-charging and water-wise-landscaping mandates, an internal-ADU protection that reaches governing documents, and an annual association registration requirement. On ADUs, Utah is narrower than the HOA-preemption states, California (Civ. Code § 4751) and Colorado (HB 24-1152), because its protection covers internal units while detached ADUs stay a declaration question. For a multi-state operator, the operational takeaway is specific: in Utah a board cannot ban solar by rule on a detached dwelling, a declaration-level prohibition needs a supermajority to add, an internal ADU cannot be prohibited, and most other modifications still turn on the declaration.

This coverage updates quarterly as the Legislature and the Utah courts act on solar, ADUs, and covenant enforcement. And the constant underneath all of it: the federal frameworks — the Freedom to Display the American Flag Act, OTARD, the Fair Housing Act, and the ADA — apply to Utah associations regardless of the state framework.

1. Utah Code § 57-8a-101 et seq., Community Association Act ↩
2. Utah Code § 57-8-2, applicability of the Condominium Ownership Act ↩
3. Utah Code §§ 57-8a-217 and 57-8a-218, rules, design criteria, and water-wise landscaping ↩
4. Utah Code § 57-8a-222, partitions and apertures between adjoining-lot dwellings ↩
5. Utah Code § 57-8-10(1), declaration covenants enforceable "where reasonable" ↩
6. Fink v. Miller, 896 P.2d 649 (Utah Ct. App. 1995) ↩
7. Utah Code § 57-8a-213, board action to enforce governing documents ↩
8. Utah Code § 57-8a-105, registration with the Department of Commerce ↩
9. Utah Code § 57-8a-701, solar energy systems; HB 119 (2025) ↩
10. Utah Code § 57-8a-219, display of the flag ↩
11. Utah Code Title 57, Chapter 24, Display of Flag Act ↩
12. Utah Code § 57-8a-802, electric vehicle charging systems ↩
13. HB 82 (2021), Single-Family Housing Modifications ↩
14. Utah Code §§ 57-8a-209 and 57-8a-218, internal ADU carve-outs ↩
15. Utah Department of Commerce, Accessory Dwelling Units guidance ↩
16. Cal. Civ. Code § 4751 (added by AB 670, 2019) ↩
17. Freedom to Display the American Flag Act of 2005, Pub. L. 109-243 ↩
18. FCC OTARD Rule, 47 C.F.R. § 1.4000 ↩
19. Fair Housing Act, 42 U.S.C. § 3604(f)(3) ↩
20. ADA Title III ↩
21. HB 217 (2025), Homeowners' Association Amendments ↩
22. Utah Courts, appellate structure ↩
23. Pioneer Home Owners Association v. TaxHawk Inc., 2025 UT App 5; WDIS v. Hi-Country Estates Homeowners Ass'n, 2022 UT 17 ↩