ADUs are allowed in Unincorporated LakeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Lake, CO
Is your property eligible for an ADU?
# of Properties
4,023
Owner-occupied
19%
Zoning districts
16
Avg Home Value
$287,337
Median Lot Size
0.46 acres
Avg Income
$99,821
Residential Types:
4,023 housing units
Single Family
68%
2-3 Family
1%
Apts (4+ units)
1%
Other
30%
Zoning Districts:
10,329 parcels · 16 districts
IM
32%(3,254)
RC
21%(2,157)
BC
14%(1,474)
UR
13%(1,364)
Other
20%(2,080)
ADU Rules
What can you build in Unincorporated Lake, CO?
Unincorporated Lake, 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 size no larger than the principal dwelling’s floor area
Detached ADU Size Limits
- –Maximum ADU size cannot be larger than the principal use on the lot.
Max Units
- –1 ADU per single-family lot
- –0 ADU per lot for duplex or multi-family units
Owner Occupancy
- –No owner-occupancy requirement for ADUs
Parking
- –1 space/ADU for studio or 1BR; 2 spaces for 2+BR; all off-street; in addition to principal dwelling parking; no reductions/waivers or location-based exceptions stated
Rental Restrictions
- –ADUs may only be rented with a Primary Short-Term Rental License; no Standard STR licenses issued for an ADU; max one STR license per parcel (a primary resident may hold a Primary License for the ADU and a Standard License for the main residence).
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.
Lake County