Can I Build an ADU in Minneapolis?

Direct Answer: Maybe, but Minneapolis has a defined administrative application process before you get to construction. The City's ADU application page says the application explains how to file for an accessory dwelling unit and includes a checklist, fee schedule, worksheet, and definitions for internal, attached, and detached ADUs. If zoning approves the ADU, the construction still has to pass building-permit review and inspections.

Verified against official municipal and state sources: July 13, 2026. Requirements change — confirm with the city before applying.

Key Takeaways

• Minneapolis publishes an official accessory dwelling unit application page for administrative ADU review (Accessory Dwelling Unit).
• The application materials include a checklist, fee schedule, worksheet, and definitions of internal, attached, and detached ADUs.
• ADU approval is a land-use/zoning step, not a substitute for a building permit.
• Electrical and elevator permits are handled by the Minnesota Department of Labor and Industry, while Minneapolis handles building, mechanical, and plumbing permits through Construction Code Services.
• The project must still satisfy the Minnesota State Building Code as enforced locally by Minneapolis.

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The Three ADU Types

Minneapolis distinguishes internal, attached, and detached ADUs. Internal ADUs are created within the principal structure, such as basement or attic conversions. Attached ADUs are added to the principal structure. Detached ADUs are separate accessory structures. Each can raise different questions about entrances, fire separation, utilities, parking, setbacks, height, and lot coverage.

The zoning application decides whether the ADU is allowed on the property and whether the proposal meets land-use standards. The building permit decides whether the construction is safe and code-compliant.

What to Prepare

• Address, parcel, and zoning district.
• Existing and proposed floor plans.
• Site plan showing principal dwelling, ADU location, parking, setbacks, and access.
• Unit type: internal, attached, or detached.
• Contractor and trade information.
• Utility and egress details.

For more on garage/basement conversion issues, see Can I Turn My Garage Into an Apartment?. For the city permit framework, see Getting a Building Permit in Minneapolis.

FAQ

Does Minneapolis allow detached ADUs?

The City's ADU materials define internal, attached, and detached ADUs, but your specific parcel still has to meet the zoning standards.

Is the ADU application the same as a building permit?

No. ADU approval is a land-use step. Construction still requires the applicable building and trade permits.

Can I convert a garage into an ADU?

Possibly, but garage conversions often trigger the hardest building-code questions: fire separation, egress, heat, insulation, plumbing, and electrical capacity.

Verify Your Address

Use GovCodex's Minneapolis permit catalog or run a permit check before spending on design drawings, because ADU feasibility depends on the exact parcel.