ADUs are allowed in MancosTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Mancos, CO
Is your property eligible for an ADU?
# of Properties
608
Owner-occupied
37%
Zoning districts
22
Avg Home Value
$24,454
Median Lot Size
0.25 acres
Avg Income
$73,144
Residential Types:
608 housing units
Other
100%
Zoning Districts:
695 parcels · 22 districts
SFR-1
62%(428)
MFR-2
14%(94)
CMU
10%(67)
C
6%(40)
Other
9%(66)
ADU Rules
What can you build in Mancos, CO?
Mancos, 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 equal to the gross floor area of the primary dwelling
Detached ADU Size Limits
- –Maximum detached ADU size is the lesser of 80% of the principal dwelling’s gross floor area or 750 sq ft.
Max Units
- –1 ADU per residential lot
Owner Occupancy
- –Owner must reside in primary or ADU for six months each year.
Parking
- –1 space per ADU (off-street) in addition to primary dwelling; no max stated; staff may waive if infeasible or adequate on-street parking; DMU Downtown Center: no off-street parking required for new development, but each unit must have at least one space not blocked (tandem allowed).
Rental Restrictions
- –No third-party rentals in the owner-occupied unit.
- –STR (<30 days) require STR license; licenses capped at 15; owner must live on-site in residential zones; mixed-use/commercial zones require local ownership; permanently affordable/public/workforce housing may not be used as STRs
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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Is your property eligible for an ADU?
ADU rules in other Colorado municipalities
Rules change at the town line. Check the municipality your property is actually in.
Montezuma County