

ADUs are allowed in Unincorporated MontezumaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Montezuma, CO
Is your property eligible for an ADU?
# of Properties
7,449
Owner-occupied
51%
Zoning districts
27
Avg Home Value
$26,652
Median Lot Size
5.35 acres
Avg Income
$80,645
Residential Types:
7,449 housing units
Single Family
24%
Other
76%
Zoning Districts:
10,088 parcels · 27 districts
AR-ES
28%(2,800)
A-R-3-9
24%(2,372)
A-R-35-PLUS
16%(1,618)
A-R-10-34
12%(1,235)
Other
20%(2,063)
ADU Rules
What can you build in Unincorporated Montezuma, CO?
Unincorporated Montezuma, CO 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
- –Maximum size of 2,000 sq ft for a guest/caretaker accessory dwelling unit
Detached ADU Size Limits
- –Maximum ADU size of 2,000 sq ft
Max Units
- –1 ADU per lot (guest/caretaker unit)
ADU State Law
What can you build in Colorado?
- –ADUs must be approved based on objective standards; no discretionary hearings allowed.
- –Historic properties: Local historic review may still apply in designated historic districts.
- –Exempt parcels: ADUs are not required to be allowed on parcels without adequate water/sewer, in floodways, or on certain historic properties.
- –HOAs cannot prohibit ADUs: HOA rules that conflict with the state ADU law are void.
- –Parking exceptions exist: In rare cases, one parking space may be required if there is no existing off-street parking and on-street parking is prohibited.
- –Local rules still matter: Building code, fire code, utility capacity, and life-safety standards still apply.
- –More permissive is allowed: Municipalities may allow larger ADUs, multiple ADUs, or additional housing types beyond what the state requires.
- –Local zoning controls whether ADUs are allowed at all.
- –HOA rules may still apply.
- –More permissive local rules are allowed.
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 Colorado municipalities
Rules change at the town line. Check the municipality your property is actually in.
Montezuma County