Yes, you can build an Accessory Dwelling Unit (ADU) on your property in Minneapolis, as long as your property meets certain zoning, size, and design requirements. ADUs are becoming a popular way for homeowners to add functional living space, accommodate extended family, or generate rental income. Whether you’re considering a detached backyard cottage or converting part of your existing home, here’s everything you need to know before starting your project.
Key Regulations for Building an ADU in Minneapolis
Zoning and Property Requirements
- Eligible Properties: ADUs are allowed on properties with single-family homes. Duplexes and multifamily properties do not qualify under the current zoning code.
- Owner Occupancy: Either the primary home or the ADU must be occupied by the owner. This is a legal requirement enforced through a recorded owner-occupancy covenant.
- Number of ADUs Allowed: Only one ADU is permitted per property.
Size and Height Restrictions
- Maximum Size: Internal and attached ADUs up to 800 square feet while detached ADUs are limited to 800 square feet or 33% of the lot size—whichever is less.
- Height Limit: Detached units cannot exceed 21 feet in height, and they must remain below the primary home’s height.
Setbacks and Placement
Detached ADUs must be at least 10 feet away from the main house and must comply with required setbacks from side and rear property (typically 5 feet from the side and 3 feet from the alley or rear property line).
Design and Appearance
To maintain neighborhood character, Minneapolis has specific design standards:
- Exterior Finishes: Materials should match or complement the main house.
Entrances: The entrance should not face the street to avoid looking like a separate home. - Windows: Minimum of 5% window coverage on alley-facing and street-facing elevations.
- Stairways: Any external stairs must be located at the rear or be enclosed.
Application and Approval Process
Before you begin construction, the city has a step-by-step process to ensure your ADU meets all requirements.
- Pre-Application Meeting: Meet with zoning and building staff to discuss your plan and ensure it complies with ADU regulations.
- Prepare Your Application: Submit site plans, floor plans, and detailed elevations for review.
Administrative Review: City staff will review the application for zoning compliance and design standards. - Building Permits: Apply for necessary building, electrical, plumbing, and mechanical permits.
- Recording Owner-Occupancy Covenant: This legal document must be recorded with Hennepin County before a building permit is issued.
Benefits of Adding an ADU
- Rental Income: An ADU can become a source of consistent passive income.
- Multi-Generational Living: Perfect for aging parents, adult children, or extended family who want independent space close to home.
- Property Value: Adding an ADU can increase your home’s resale value.
- Housing Flexibility: Can be used as a guest house, office, or short-term rental.
Considerations and Potential Challenges
- Construction Costs: Building an ADU is an investment. Costs can vary depending on the size, type, and complexity of the unit.
- Design Constraints: Matching architectural styles and fitting within setback and height limitations can be challenging.
- Utility Connections: Some ADUs may require separate sewer, water, or electric service, which adds to cost and complexity.
- Inspection and Code Compliance: All construction must comply with the Minnesota State Building Code and city regulations.
Conclusion
Minneapolis offers a clear path for homeowners interested in adding an ADU to their property. With flexible zoning rules and minimal parking requirements, building an ADU is more accessible than ever. Whether you’re looking to add a rental unit, support multigenerational living, or enhance your property’s value, it’s a smart investment when done right. For expert guidance and help bringing your ADU project to life, reach out to the team at Stonehearth Remodeling.
