Minneapolis is one of the nation's most ADU-friendly cities, allowing up to three dwelling units per lot in many zones. The city's progressive housing policy makes it an excellent market for ADU development and investment.
Zoning & Size Requirements [1][2]
| Allowed Zones | All interior residential districts permitting single- or two-family dwellings |
| Max Size (Detached) | 1,300 sq ft or 16% of lot area (whichever greater); max 1,600 sq ft or size of primary dwelling (whichever less) |
| Max Size (Attached) | 800 sq ft |
| Max Size (JADU) | 800 sq ft (internal ADU — within existing structure) |
| Max Height | 16 ft (20-21 ft if exterior materials match principal structure) |
| Max Units | 1 ADU per zoning lot |
Setback Requirements [1][2]
| Rear Setback | 3 ft (5 ft from alleys for above-garage ADUs) |
| Side Setback | 3 ft |
| Front Setback | Must meet primary dwelling front setback (ADUs placed in rear yard) |
| Parking Required | No minimum off-street parking required |
| Owner Occupancy | Not required (removed by ordinance amendment, effective 2020; applies to both principal and ADU) |
| Min Lot Size | No ADU-specific minimum; lot must support permitted single- or two-family dwelling |
Permit Process & Fees [3]
| Approval Process | Administrative application + building permit (by-right in all qualifying zones) |
| Review Timeline | 40-60 days |
| Permit Fees | $1,800-$3,000 |
| Impact Fees | Minimal |
| Plan Check | 2-3 weeks |
| Pre-Approved Plans | Available |
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Construction Costs [4][5]
| Average Build Cost | $140,000-$280,000 |
| Cost per Sq Ft | $130-$270 |
| Garage Conversion | $70,000-$160,000 |
| Prefab ADU (Installed) | $100,000-$230,000 |
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Rental Income Potential [6][7]
| Avg Rent (1 Bedroom) | $1,350-$1,800/mo |
| Avg Rent (2 Bedroom) | $1,700-$2,400/mo |
| Short-Term Rental | Permitted with registration |
| Est. Annual ROI | 7-10% annual return |
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Recent Law Changes
What's Changed Recently
- Minneapolis ADU construction boom: 400+ units built since 2020 zoning reform
- Saint Paul expanded ADU size limits to 1,000 sq ft for detached units (2026)
- Minnesota considering statewide ADU legislation following Minneapolis success
- Both cities reduced ADU permit fees by 25% for 2026
Tips for Building an ADU in Minneapolis
- Minneapolis is at forefront of zoning reform; exceptional ADU policies
- Three-unit allowance creates maximum flexibility and income potential
- Progressive city support means strong policy stability
- Winter climate creates seasonal rental considerations
Sources & References
All data on this page is sourced from official government records and verified market data. View our full methodology.
- Accessory Dwelling Units (ADUs) — City of Minneapolis Planning Department — Accessed 2026-02-25
- Minneapolis Code of Ordinances, Ch. 537 — Accessory Uses & Structures Municipal Code — Accessed 2026-02-25
- Accessory Dwelling Unit Application — City of Minneapolis Planning Department — Accessed 2026-02-25
- HomeAdvisor — ADU Construction Cost Data Market Data — Accessed 2026-02-24
- Angi — Local ADU Contractor Costs Market Data — Accessed 2026-02-24
- Zillow Rental Manager — Market Rent Data Market Data — Accessed 2026-02-24
- HUD Fair Market Rents Government Data — Accessed 2026-02-24
- Owner-Occupancy Accessory Dwelling Units Ordinance — Minneapolis LIMS Municipal Code — Accessed 2026-02-25
- Accessory Structures Height Ordinance — Minneapolis LIMS Municipal Code — Accessed 2026-02-25
- Minnesota ADU Legislation (SF 4009) Government Data — Accessed 2026-02-24
Frequently Asked Questions
Can I build an ADU in Minneapolis?
Yes. ADUs are allowed in All interior residential districts permitting single- or two-family dwellings in Minneapolis. The maximum size for a detached ADU is 1,300 sq ft or 16% of lot area (whichever greater); max 1,600 sq ft or size of primary dwelling (whichever less). No owner-occupancy is required.
How much does an ADU cost in Minneapolis?
ADU construction in Minneapolis typically costs $140,000-$280,000. Garage conversions run $70,000-$160,000, and prefab ADUs cost $100,000-$230,000.
How much can I rent an ADU for in Minneapolis?
Average ADU rents in Minneapolis are $1,350-$1,800/mo for a 1-bedroom and $1,700-$2,400/mo for a 2-bedroom unit.
Do I need parking for an ADU in Minneapolis?
No minimum off-street parking required. Check with Minneapolis planning department for the latest Minnesota ADU parking rules, as many states have relaxed requirements in recent years.
How long does it take to get an ADU permit in Minneapolis?
The permit review timeline in Minneapolis is 40-60 days. Fees range from $1,800-$3,000.
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