ADUs are allowed in RidgwayTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Ridgway, CO
Is your property eligible for an ADU?
# of Parcels
1,152
Zoning districts
13
Median Parcel Size
0.19 acres
Zoning Districts:
1,354 parcels · 13 districts
R
33%(450)
GC
28%(384)
HR
16%(214)
HB
13%(177)
Other
10%(129)
ADU Rules
What can you build in Ridgway, CO?
Ridgway, 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 internal or attached ADU size of 1,000 sq ft of gross floor area.
Detached ADU Size Limits
- –Maximum detached ADU size of 1,000 sq ft of gross floor area.
Max Units
- –SF/duplex/triplex: 1 ADU on ≥3,000 sf; 2 on ≥7,500 sf (max 2/lot).
- –Multifamily (4+): 0 ADUs.
Owner Occupancy
- –Owner-occupancy not required; ADUs must remain in undivided ownership.
Parking
- –1 space/ADU; on-street counting allowed within 100 ft; up to 50% reductions (bicycle/transit credits); HB District: min 2 off-street spaces; spaces above two may be satisfied via fee-in-lieu
Rental Restrictions
- –Minimum 90-day lease for ADU (unless owner-occupied); Short-Term Rentals require licensing/compliance and are prohibited in multiple-family structures.
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.
Ouray County