ADUs are allowed in Unincorporated MohaveTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Mohave, AZ
Is your property eligible for an ADU?
# of Properties
68,474
Owner-occupied
50%
Zoning districts
50
Avg Home Value
$136,029
Median Lot Size
0.60 acres
Avg Income
$53,230
Residential Types:
68,474 housing units
Single Family
56%
Other
44%
Zoning Districts:
174,038 parcels · 50 districts
A-R
62%(107,049)
R-1
11%(19,710)
R-E
8%(14,398)
R-O
7%(12,692)
Other
12%(20,189)
ADU Rules
What can you build in Unincorporated Mohave, AZ?
Unincorporated Mohave, AZ follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Internal or attached ADU may not exceed the size of the principal dwelling; on lots smaller than 1 acre it is further capped at the lesser of 1,000 sq ft or 75% of the primary dwelling.
Detached ADU Size Limits
- –Maximum ADU size: on lots under 1 acre, the lesser of 1,000 sq ft or 75% of the primary dwelling’s floor area; otherwise it may not exceed the primary dwelling’s floor area.
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –2 spaces per dwelling unit; ADUs have no separate ADU-specific parking and must share a single street access with the primary residence (parking applies to structures tied to the primary use).
Rental Restrictions
- –Only one STR unit per parcel; only one ADU may be used as a short-term rental; STRs must be rented as a whole unit.
- –STRs limited to stays of 30 consecutive days; no rentals to registered sex offenders; no commercial events/signage.
- –On parcels ≥1 acre with a second detached ADU, at least one ADU must be deed-restricted affordable to households ≤80% AMI.
ADU State Law
What can you build in Arizona?
- –ADUs must be allowed as a permitted use wherever single-family dwellings are allowed.
- –Must allow at least 2 ADUs per lot (1 attached + 1 detached). A third detached ADU must be allowed if the lot is ≥ 1 acre and one ADU is restricted-affordable (≤ 80% Area Median Income).
- –ADU rules cannot be more restrictive than single-family rules in the same zoning area for height, setbacks, lot size, lot coverage, and building frontage; and side/rear setbacks cannot exceed 5 feet.
- –The city cannot require additional parking (or fees in lieu of parking).
- –The city cannot prohibit separately leased long-term rentals (≥ 90 days or month-to-month) for either the primary home or the ADU; local short-term rental rules may still apply.
- –The city cannot require the ADU to match exterior design, roof pitch, or finishing materials of the primary home.
- –The city cannot require public street improvements as a condition of allowing an ADU, except to repair or reconstruct a street disturbed by ADU construction.
- –The city cannot require a restrictive covenant as a condition of approving an ADU.
- –ADUs cannot be built over a public utility easement without written utility consent; building, fire, and health codes still apply, but the city cannot require commercial code or sprinklers solely because it is an ADU.
- –Private restrictions may still apply (HOAs, deed restrictions, and other private covenants between parties).
- –Backstop rule: If the municipality failed to adopt the required ADU regulations by January 1, 2025, ADUs are allowed on residential lots in that municipality without limits.
- –In municipalities with population ≤ 75,000, in unincorporated county areas, and on the statute's exempt lands (tribal; defined military vicinity; defined airport vicinity with >65 dB), there is no state ADU override. ADUs depend on local rules.
- –Private deed restrictions and HOA covenants may still limit ADUs, and the statute does not eliminate those private covenants (it mainly limits what a municipality can require or condition).
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Arizona municipalities
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Mohave County