ADUs are allowed in Canon CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Canon City, CO
Is your property eligible for an ADU?
# of Properties
6,198
Owner-occupied
71%
Zoning districts
13
Avg Home Value
$237,011
Median Lot Size
0.22 acres
Avg Income
$69,638
Residential Types:
6,198 housing units
Single Family
91%
2-3 Family
3%
Apts (4+ units)
3%
Other
3%
Zoning Districts:
7,197 parcels · 13 districts
R-1
41%(2,963)
R-2
25%(1,764)
PDD
12%(875)
GC
7%(494)
Other
15%(1,101)
ADU Rules
What can you build in Canon City, CO?
Canon City, 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 for internal/attached ADUs: 10% of lot area, capped at 1,000 sq ft (not applied on RF-R single-family lots).
- –RF-R district, single-family lots: Maximum ADU size is 15% of total lot area (applies to internal/attached ADUs).
Detached ADU Size Limits
- –Maximum detached ADU size citywide: 10% of lot area up to 1,000 sq ft (not applied in RF-R single-family).
- –Detached ADU accessory building cap on lots ≤ 10,000 sq ft: max 700 sq ft or 75% of principal building gross floor area, whichever is less.
- –Detached ADU accessory building cap on lots > 10,000 sq ft: max 2,000 sq ft or 75% of principal building gross floor area, whichever is less.
- –RF-R single-family lots: maximum detached ADU size is 15% of total lot area (also subject to accessory building caps).
Owner Occupancy
- –Owner must reside in the ADU or principal dwelling for 6 months.
Parking
- –RF-R: 0 spaces/ADU; outside RF-R: at least 1 off-street space/ADU; no max; RF-R governs in RF 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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ADU rules in other Colorado municipalities
Rules change at the town line. Check the municipality your property is actually in.
Fremont County