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ADUs are allowed in Ault
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Accessory Dwelling Unit (ADU) Rules for Ault, CO

Is your property eligible for an ADU?

# of Properties
1,542
Owner-occupied
69%
Zoning districts
14
Avg Home Value
$340,810
Median Lot Size
0.16 acres
Avg Income
$95,171
Residential Types:
1,542 housing units
Residential
100%
Zoning Districts:
6,680 parcels · 14 districts
A
40%(2,641)
PUD
25%(1,688)
R
23%(1,554)
MP
4%(264)
Other
8%(533)

ADU Rules

What can you build in Ault, CO?

Ault, CO follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Rental Restrictions

  • Short-term rentals (STR) are allowed only in Town Residential by conditional use; not allowed in Rural Residential or Agricultural districts.

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.

Weld County

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