ADUs are allowed in Unincorporated TellerTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Teller, CO
Is your property eligible for an ADU?
# of Properties
8,934
Owner-occupied
67%
Zoning districts
22
Avg Home Value
$481,771
Median Lot Size
2.07 acres
Avg Income
$81,345
Residential Types:
8,934 housing units
Residential
100%
Zoning Districts:
24,478 parcels · 22 districts
A-1
48%(11,637)
R-1
41%(10,085)
R-1M
9%(2,219)
C-1
1%(214)
Other
1%(323)
ADU Rules
What can you build in Unincorporated Teller, CO?
Unincorporated Teller, 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
Max Units
- –A-1 with agricultural tax status: 1 ADU per lot, plus 1 additional ADU for each additional full 35 acres beyond the first.
- –A-1 without agricultural tax status: 1 ADU per lot (or 1 Guest House); less than 35 acres: 0 ADUs (no more than one dwelling unit per lot).
- –RLPSE lots: 1 attached ADU per designated lot; subdivision cap equals SB 35 (e.g., 10 ADUs on a 360-acre example).
Parking
- –2 off-street spaces per ADU (in addition to 2 for the primary dwelling); tandem parking may count toward residential off-street parking when assigned to the same unit; required parking must be on the same lot as the principal use or within 400 feet.
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.
Teller County