ADU Rules: Centennial vs Englewood
How do adu rules rules compare between Centennial, CO and Englewood, CO?
Centennial and Englewood have similar restriction levels.
Centennial, CO
Arapahoe County
Centennial approved ADU regulations unanimously in 2024. Interior ADUs are limited to 50% of the primary residence. Detached ADUs cannot exceed 800 sq ft. ADUs must match the primary home's design. Under HB 24-1152, owner occupancy cannot be required, and STRs in ADUs are prohibited except in PUDs.
View full Centennial rules →Englewood, CO
Arapahoe County
Englewood must comply with Colorado HB 24-1152 (effective June 30, 2025) as a subject jurisdiction in the Denver metro. The state law requires allowing ADUs of 500-750 sq ft with administrative approval. Either a primary home or ADU may serve as a short-term rental. The city's UDC governs accessory structure standards.
View full Englewood rules →Key Facts Comparison
| Fact | Centennial | Englewood |
|---|---|---|
| Interior Max | 50% of primary residence | - |
| Detached Max | 800 sq ft | - |
| Design | Must match primary home | - |
| STR in ADU | Prohibited (except PUDs) | - |
| State Law | - | HB 24-1152 (eff. June 2025) |
| Size | - | 500-750 sq ft required |
| Approval | - | Administrative only |
| STR Eligible | - | Yes, with primary residency |
Highlighted rows indicate differences between cities.
Centennial FAQ
Can I build an ADU on my property in Centennial?
Centennial approved ADU regulations unanimously in 2024. Interior ADUs are limited to 50% of the primary residence. Detached ADUs cannot exceed 800 sq ft. ADUs must match the primary home's design. Under HB 24-1152, owner occupancy cannot be required, and STRs in ADUs are prohibited except in PUDs.
What are the size limits for an accessory dwelling unit in Centennial?
Interior Max: 50% of primary residence. Detached Max: 800 sq ft. Design: Must match primary home. STR in ADU: Prohibited (except PUDs).
Englewood FAQ
Can I build an ADU on my property in Englewood?
Englewood must comply with Colorado HB 24-1152 (effective June 30, 2025) as a subject jurisdiction in the Denver metro. The state law requires allowing ADUs of 500-750 sq ft with administrative approval. Either a primary home or ADU may serve as a short-term rental. The city's UDC governs...
What are the size limits for an accessory dwelling unit in Englewood?
State Law: HB 24-1152 (eff. June 2025). Size: 500-750 sq ft required. Approval: Administrative only. STR Eligible: Yes, with primary residency.
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