Accessory Dwelling Unit (ADU) Regulations in Golden

Max Size-

•  If the primary residence 1,000 sq/ft or more the maximum sq/ft is 800sq/ft or 50% of the primary residence (whichever is less)
• If the primary residence less than 1,000 sq/ft the maximum sq/ft is 500 sq/ft
  
  • ADU’s can not be smaller than 200 sq/ft

Max Height- Cannot exceed height of the primary residence

Golden has strict size limitations and design standards to ensure ADUs fit within existing neighborhoods:

• Maximum ADU Size:
  
  • For homes 1,000 sq/ft or larger, the ADU cannot exceed 50% of the home’s living space or 800 sq/ft, whichever is smaller.
  • For homes smaller than 1,000 sq/ft, the ADU cannot exceed 500 sq/ft.
  • No ADU can be smaller than 200 sq/ft.
• Height Limits: Detached ADUs cannot be taller than the main home or 24 feet, whichever is lower.
• Setbacks & Placement: Detached ADUs must comply with standard setback and lot coverage regulations.
• Architectural Compatibility: ADUs must match the style, exterior materials, windows, doors, and roof pitch of the primary home.
• Privacy Considerations: Windows that face neighboring properties should be designed to minimize privacy concerns unless proper landscaping or fencing is installed.

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• HB 24-1152 requires cities to allow ADUs without designated parking, except in these cases:
  ✔ If no parking is currently required for the primary home, parking cannot be required for the ADU.
  ✔ If the lot does not have an existing parking space for the primary home, no additional parking is required.

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• ADUs must share utility connections with the primary home—separate water or sewer taps are not allowed unless deemed necessary by the city.
• Homeowners are responsible for all utility charges associated with the ADU.

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• HB 24-1152 prohibits cities from requiring owner occupancy meaning ADUs can be rented out separately from the primary home.
• ADUs cannot be sold separately from the main home—they must remain part of the same lot.
• Short-term rentals (STRs) are still prohibited, except in Planned Unit Developments (PUDs) where STRs were previously allowed.

• Only one ADU is permitted per lot.

ADUs must remain compliant with Golden’s rental licensing requirements.

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Under HB 24-1152, all ADU approvals must be handled administratively—meaning there are:
✔ No public hearings
✔ No subjective design reviews
✔ No neighborhood approval required

Building an ADU in Golden requires multiple approvals and permits, including:

1. Zoning Verification – Confirm your lot is eligible for an ADU.
2. Building Permit Application – Submit architectural drawings, a site plan, and other required documents.
3. Plan Review & Approvals – The city will review your ADU plans for compliance.
4. Construction & Inspections – Once approved, the project must comply with city building codes and pass inspections before occupancy.

The permit application fee varies based on the size and complexity of the ADU.

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Navigating Golden’s ADU regulations can be complex, but Kindred Tiny Homes makes the process easy by handling every step from zoning approvals to final construction.

• We specialize in Golden’s ADU regulations ensuring compliance with all zoning and permitting requirements.
• We provide full-service ADU development from design and engineering to construction and project management.
• We maximize your investment creating a high-quality ADU that enhances property value and meets your needs.

If you’re considering building an ADU in Golden, contact us today for a free consultation, we’ll guide you through your options and help bring your vision to life!

Deed Restrictions & Legal Requirements

Before obtaining a building permit, homeowners must record a deed restriction that ensures:

• The ADU cannot be sold separately from the primary home.
• The ADU must maintain its approved size and design.
• Either the ADU or the primary home must be owner-occupied at all times.
• If the ADU is removed, the property owner must record documentation with the county to remove the deed restriction.

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