Minnesota permit requirements
We have read and dated 20 permit rules across 2 jurisdictions in Minnesota. On every measurement where two or more of them publish a comparable number, they land on the same one: deck at 30 inches and shed at 200 sq ft.
- Jurisdictions
- 2
- Verified rules
- 20
- Permit always required
- 12
- Depends on the project
- 8
Do you need a building permit in Minnesota?
Usually yes, but not from Minnesota itself: permits are issued by the city or county, not the state, so the rule that governs your project is the one your own jurisdiction publishes. 12 of those local rules require a permit outright, 8 depend on a size or scope condition the office publishes, and 0 need none. Minnesota sets the building code those local rules derive from; your city or county sets the threshold and the fee.
Do Minnesota jurisdictions agree?
Every row below is a measurement at least two Minnesota jurisdictions publish, compared against each other. This is the question a statewide answer cannot settle, because the number that governs your project is the one your own city or county publishes.
| Project | Published threshold | Jurisdictions | Agreement |
|---|---|---|---|
| Deck | 30 inches | 2 | Same number in all 2 |
| Shed | 200 sq ft | 2 | Same number in all 2 |
2 of 2 comparable measurements are uniform across Minnesota; 0 are not. Latest verification 2026-08-15.
Where Minnesota jurisdictions split
The verdict for each project across the 2 Minnesota jurisdictions we cover. On 2 of 10 projects they do not give the same answer, which is why a statewide answer is not one.
| Project | Permit required | Depends | No permit | Across the state |
|---|---|---|---|---|
| Fence | 1 | 1 | Answer varies | |
| Pool | 1 | 1 | Answer varies | |
| Deck | 2 | Same answer everywhere | ||
| Electrical | 2 | Same answer everywhere | ||
| HVAC | 2 | Same answer everywhere | ||
| Patio | 2 | Same answer everywhere | ||
| Plumbing | 2 | Same answer everywhere | ||
| Roof Replacement | 2 | Same answer everywhere | ||
| Shed | 2 | Same answer everywhere | ||
| Solar | 2 | Same answer everywhere |
Building without a permit in Minnesota
Minnesota's State Building Code applies statewide, and any municipality that had adopted it by January 1, 2008 must keep administering and enforcing it, with an exception for municipalities under 2,500 population outside the Twin Cities metro area. Chapter 326B, which contains the building code and its permit provisions, is defined as part of the Department of Labor and Industry's 'applicable law.'
Penalties, the as-built path, and what the statute actually says
What you can build without a permit in Minnesota
0 of the 20 answered rules across Minnesota need no permit at all and 8 turn on a size or scope condition the jurisdiction publishes, by project and jurisdiction, in each office's own words.
Building code in Minnesota
Minnesota Residential Code (part of the Minnesota State Building Code). Based on the International Residential Code (IRC), with Minnesota amendments.
Administered by Minnesota Department of Labor and Industry (DLI). Official source
The state code applies statewide and is enforced locally.
Most local permit thresholds derive from this code. See our sources and standards.
What each Minnesota jurisdiction publishes
One line per jurisdiction, written from its own rules rather than from a state summary. This is the section that used to be a list of links, and the states with the fewest jurisdictions to compare are the ones it says the most about.
- Minneapolis 10 rules
6 of 10 projects always need a permit and 4 turn on the size or scope of the work. The ones that depend on the project are deck, fence, patio and shed. Published thresholds include deck at 30 inches and fence at 7 feet.
- Saint Paul 10 rules
6 of 10 projects always need a permit and 4 turn on the size or scope of the work. The ones that depend on the project are deck, patio, pool and shed. Published thresholds include deck at 30 inches and pool at 5,000 gallons.