Minnesota building departments

How permitting works in Minnesota

Statewide code enforced where adopted. The Minnesota State Building Code applies statewide but is enforced only where a city or county has adopted it. The state inspects electrical work unless the local government runs its own electrical program, and most residential contractors and remodelers need a state license.

A county name is only a geographic starting point. Depending on the address, a city, town, borough, township, or county office may issue your permit. How to check who issues your permit.

Minnesota building codes and licensing

Residential code

2020 Minnesota Residential Code (2018 IRC with Minnesota amendments, Minn. R. ch. 1309); effective March 31, 2020

Commercial code

2020 Minnesota Building Code (2018 IBC with Minnesota amendments, Minn. R. ch. 1305); 2024 Minnesota Commercial Energy Code effective Jan. 5, 2024

Adopted by

Minnesota Department of Labor and Industry, Construction Codes and Licensing Division (opens in a new tab)

Outside city limits

The State Building Code applies statewide, but local enforcement depends on adoption. Cities that adopted it by 2008 must keep enforcing it, while small cities outside metro counties may opt out. A city may extend enforcement up to two miles into an adjoining township with the town board's permission.

Contractor licensing

A DLI license is required for residential contractors and remodelers who contract with homeowners and offer more than one special skill. Exemptions include owners building their own home or rental and contractors with no more than $15,000 in gross annual receipts. Plumbers and electricians are licensed separately. Minnesota Department of Labor and Industry – Residential contractors, remodelers, roofers (opens in a new tab)

What is different in Minnesota

• The State Building Code supersedes municipal building codes. Cities cannot adopt different component or system requirements except more restrictive rules approved by the state building official for geological conditions.
• DLI inspects new electrical installations unless a local government has adopted its own electrical inspection program (Minn. Stat. 326B.36).
• Owners who build or remodel for resale or speculation need a contractor license. Building more than one property within 24 months creates a presumption of speculation unless the properties are kept as rentals.
• Cities may require exterior work under a building permit to be finished within a set time, but not less than 180 days after the permit is issued.

Minnesota department guides

Browse Minnesota counties

Bold counties have at least one researched department guide.

Planning a project in Minnesota?

Start with what the model codes say, then confirm local rules with the department that serves your address.

• Do I Need a Permit for a Deck
• Do I Need a Permit for a Fence
• Do I Need a Permit for a Shed
• Do I Need a Permit to Replace a Roof
• Do I Need a Permit to Replace a Water Heater
• Do I Need a Permit for a Kitchen Remodel
• How Much Does a Building Permit Cost
• Building Inspection Stages Explained

Sources

1. Minnesota Department of Labor and Industry
2. Minnesota DLI – 2020 Minnesota State Building Codes
3. Minnesota Rules 1309.0010 – Adoption of IRC by reference
4. Minnesota Rules 1305.0011 – Adoption of IBC by reference
5. Minnesota Statutes 326B.805 – Residential contractor licensing
6. Minnesota Statutes 326B.36 – Electrical inspections
7. Minnesota DLI – Residential contractors, remodelers, roofers
8. Minnesota DLI – Building plan review

State facts checked October 21, 2026. Local amendments can change these rules; the department serving your address has the final word.