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Eagle Mountain, UT Accessory Structures: ADU Owner Occupancy (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Owner must live
In primary unit or the ADU
ADU occupants
Related family or 2 unrelated max
Subleasing
Prohibited
Exceptions
Never granted for owner occupation
Governing section
EMMC 17.70.030(B)

Summary

Eagle Mountain requires the property owner to actually live in the home containing an accessory dwelling unit, in either the primary residence or the ADU, under EMMC 17.70.030(B). ADU occupants must be related by blood, marriage, or adoption, or number no more than two unrelated people, and subleasing is barred.

B. Occupancy and Owner Occupation. The owner(s) of the residence shall live in the dwelling in which the ADU was created (either in the primary unit or in the ADU), except for bona fide temporary absences. The occupants of the ADU shall be related to each other by blood, marriage, or adoption; or consist of no more than two unrelated individuals living as a single housekeeping unit. The occupants of the ADU shall not sublease a portion of the unit to other individuals.

View official code

Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance O-34-2026, passed August 4, 2026).

Full Breakdown

EMMC 17.70.030(B) makes owner occupancy a condition of every accessory dwelling unit approval: the owner or owners of the residence must live in the dwelling in which the ADU was created, whether that means occupying the primary unit or the ADU itself, except for bona fide temporary absences. The applicant confirms this obligation in writing; EMMC 17.70.040(A)(1) requires the owner to sign the application agreeing to occupy the dwelling and to comply with the chapter's standards before the city will approve the permit.

The same subsection also controls who can live in the ADU itself. Occupants must be related to each other by blood, marriage, or adoption, or otherwise consist of no more than two unrelated individuals living as a single housekeeping unit, and those occupants may not sublease any portion of the unit to other people. The code carves out certain live-in help from the owner-occupancy and household-composition rules entirely: a live-in maid, in-home nurse, nanny, or similar person provided housing as part of their employment or services to the owner, occupation during a family member's military service, and occupation by relatives by blood or marriage do not count as ADU uses subject to this chapter. EMMC 17.70.040(C) lists owner occupation among the standards for which the planning commission may never grant an exception, unlike other ADU requirements that can be modified through a public hearing.

Violations & Fines

Failing to maintain owner occupancy, exceeding the two-unrelated-occupant limit, or subleasing the ADU violates EMMC 17.70.030(B) and can trigger revocation of the accessory dwelling unit permit by the planning director, a designee, or the planning commission under EMMC 17.70.050. EMMC 17.70.040(C) specifically bars the planning commission from ever granting an exception to the owner-occupation requirement, unlike most other ADU standards. Enforcement proceeds under Chapter 4.10 EMMC, Article V, the city's Administrative Code Enforcement Hearing Procedures.

Frequently Asked Questions

Do I have to live in my house if I build an ADU in Eagle Mountain?
Yes. EMMC 17.70.030(B) requires the property owner to live in the dwelling where the ADU was created, in either the primary residence or the ADU itself, with exceptions only for bona fide temporary absences.
How many people can live in an Eagle Mountain ADU?
EMMC 17.70.030(B) limits ADU occupants to people related by blood, marriage, or adoption, or to no more than two unrelated individuals living as a single housekeeping unit, and bars subleasing any part of the unit.
Can I ask the planning commission to waive the owner-occupancy rule?
No. EMMC 17.70.040(C) lists owner occupation among the ADU standards for which the planning commission may never grant an exception, along with the one-unit limit, permanent utility connections, and the ban on short-term rentals.

Sources & Official References

Other rules in Eagle Mountain

All Eagle Mountain rules

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