ADUs are allowed in DaconoTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Dacono, CO
Is your property eligible for an ADU?
# of Properties
3,931
Owner-occupied
87%
Zoning districts
11
Avg Home Value
$375,275
Median Lot Size
0.14 acres
Avg Income
$117,273
Residential Types:
3,931 housing units
Residential
100%
Zoning Districts:
10,405 parcels · 11 districts
R-1
48%(5,012)
MH
34%(3,489)
R-2
7%(731)
RR-1
4%(380)
Other
8%(793)
ADU Rules
What can you build in Dacono, CO?
Dacono, 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 ADU size: 850 sq ft on lots up to 12,499 sq ft; 1,000 sq ft on 12,500–43,559 sq ft; 1,200 sq ft on 43,560 sq ft or larger; and in all cases not larger than the principal dwelling
Detached ADU Size Limits
- –Maximum ADU size of 850 sq ft (lots up to 12,499 sq ft), 1,000 sq ft (lots 12,500–43,559 sq ft), or 1,200 sq ft (lots 43,560 sq ft or larger), and in all cases not larger than the principal dwelling’s floor area
Max Units
- –1 ADU per lot (single-family detached); 0 ADU per lot on lots not developed as one-family dwelling
Owner Occupancy
- –Owner must reside on the parcel at permit application
Parking
- –No ADU-specific parking standard; no numeric ADU requirement; off-street parking follows general rules (Sec. 16-280/e) with uses not identified determined by similar uses (Sec. 16-281).
Rental Restrictions
- –Short-term (fewer than thirty (30) days) rental of an ADU is prohibited.
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.
Weld County