Blue Earth County, MN Building Safety: Building Permits (2026)
Key Facts
- Permit trigger
- any building addition 120+ sq ft
- Demolition permit
- dwellings, structures 800+ sq ft
- Permit validity
- 12 months from issuance
- Issuing office
- county zoning administrator
- Unpermitted work
- after-the-fact fee owed
- Violation penalty
- up to $1,000 fine or 90 days
Summary
In unincorporated Blue Earth County, no one may erect, alter, or move a building or its part without first getting a construction permit from the county zoning administrator. Structures under 120 square feet skip the permit but must still meet the code's setback and construction standards. A separate demolition permit covers residential dwellings and any structure 800 square feet or larger.
(1)Required. ... Hereafter, no person shall erect, alter or move any building or its part without first securing a construction permit. No construction permit shall be issued until a land use development application has been accepted by the zoning administrator. Structures less than 120 square feet do not require a construction permit; but shall be constructed according to the appropriate setbacks and standards of this chapter. ... (5)Invalidation of permit. A construction permit shall become invalid after 12 months of issuance. (b)Demolition permit; required. Hereafter, no person shall demolish a residential dwelling, or any other structure 800 square feet or more in area, or clearing any building site or farmstead without first obtaining a demolition permit from the zoning administrator.
Full Breakdown
The permit requirement sits in Blue Earth County Code Sec. 24-43, part of the county's zoning enforcement structure in chapter 24, article II. Before the zoning administrator can issue a construction permit, the applicant must first have an accepted land use development application, plus a scaled site plan showing lot dimensions and the size and location of the building and any accessory buildings. The zoning administrator issues the permit only after confirming the application is complete, the lot is buildable, and the plan complies with the chapter's use, setback, and dimensional standards for the applicable district, whether Agriculture, Conservation, Rural Residence, Rural Townsite, or one of the business and industry districts.
Once issued, a construction permit is only good for 12 months; if work has not begun by then, the property owner must reapply. Anyone who builds, alters, or moves a building without first securing the permit does not escape the requirement. Instead they owe an after-the-fact permit fee set by the county board's fee schedule, on top of still needing the permit. Demolition is handled separately under Sec. 24-43(b): no one may demolish a residential dwelling, or any other structure of 800 square feet or more, or clear a building site or farmstead, without first getting a demolition permit from the zoning administrator. The zoning administrator's office itself, created by Sec. 24-41, is also charged with keeping permit records and inspecting properties for compliance.
Violations & Fines
Building without the required permit, or violating any permit condition, is a misdemeanor under Sec. 24-44(a), punishable by a fine of up to $1,000.00, up to 90 days in jail, or both, with each day of continued violation a separate offense. The zoning administrator can also issue a stop-work order; ignoring it is itself a misdemeanor, and the property owner has ten business days to appeal a stop-work order to the board of adjustment under Sec. 24-48.
Frequently Asked Questions
Do I need a permit to build a shed in unincorporated Blue Earth County?
How long does a Blue Earth County construction permit last?
What if I already built without getting a permit?
Do I need a separate permit to tear down a building?
Sources & Official References
Other rules in Blue Earth County
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