Denver County • Permissiveness Score: 94/100
Denver, CO ADU Zoning Rules & Regulations
Colorado HB 24-1152 legalized ADUs across the Front Range. Denver has updated its zoning code to remove owner-occupancy mandates and allow ADUs in all single-family zones.
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Key Zoning Parameters for Denver
Verified 2026 Max Detached Size 1,000 sq ft
Max Attached Size 1000
Rear & Side Setbacks 5 ft rear / 5 ft side
Front Setback Behind main house rear facade
Max Height Limit 24 feet (2 stories)
Owner Occupancy Not Required (Waived) Owner occupancy requirement removed under HB 24-1152.
Parking Requirements Exempt No parking required under Colorado state law for ADUs near transit.
Junior ADU (JADU) Not recognized
Short Term Rentals (Airbnb) Prohibited Denver strictly requires primary residency for short-term rental licenses.
Estimated Permit Fees $2,500 - $6,500
Avg Review Timeline 6 - 10 weeks
Fire Sprinklers Depends on proximity to property line and fire hydrant flow.
Governing Ordinances & State Laws
- ✓ Denver Zoning Code Article 11
- ✓ Colorado State House Bill 24-1152
Denver ADU Frequently Asked Questions
Does Colorado HB 24-1152 overrule HOA bans on ADUs?
Yes! Colorado HB 24-1152 prohibits HOAs and planned communities from unreasonably restricting or banning the construction of ADUs.
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