ADUs are allowed in GypsumTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Gypsum, CO
Is your property eligible for an ADU?
# of Properties
3,484
Owner-occupied
7%
Zoning districts
20
Avg Home Value
$677,058
Median Lot Size
0.23 acres
Avg Income
$121,269
Residential Types:
3,484 housing units
Single Family
68%
Other
32%
Zoning Districts:
4,681 parcels · 20 districts
PUD
45%(2,106)
LI
16%(768)
SF/HD
12%(568)
MF
10%(458)
Other
17%(781)
ADU Rules
What can you build in Gypsum, CO?
Gypsum, 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 of 800 sq ft or 50% of the primary dwelling’s gross floor area, whichever is less; garage/porch areas excluded; existing ADUs before Nov 1, 2020 are exempt.
Detached ADU Size Limits
- –Maximum of 800 sq ft or 50% of the primary dwelling’s gross floor area, whichever is less.
Max Units
- –1 ADU per lot on single-family lots.
- –0 ADUs on duplex or multifamily lots (not allowed in MF and MHP).
- –RR/AG: at most 1 ADU per lot; 0 if a Second Dwelling Unit is present.
Owner Occupancy
- –Owner must occupy either the primary residence or the ADU
Parking
- –1 space per ADU bedroom (off-street); max 2 ADU spaces; on-street passes may be issued in lieu if off-street spaces cannot be provided; parking must be in a garage or driveway and not on landscaping/yard (per Town Code).
Rental Restrictions
- –Short-term rentals under 30 days prohibited; 30-day minimum lease required
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
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.
Eagle County