Blue Earth County, MN Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Front setback (highway)
- 130 ft from centerline
- Front setback (other roads)
- 65 ft from centerline
- Rear setback
- 30 ft to dwelling
- Side setback
- 15 ft each side
- District
- RR Rural Residence
Summary
Rural Residence (RR) District homes in unincorporated Blue Earth County must sit at least 130 feet back from the centerline of a federal, state, county, or county-state-aid highway, 65 feet from other roads, 30 feet from the rear line, and 15 feet from each side line, under Code Sec. 24-163.
(d)Front yard regulations. ... There shall be a front yard setback in the RR district of not less than 130 feet from the centerline of all federal, state, county and county-state aid highways, except for divided highways which shall be 100 feet from the highway right-of-way line. There shall be a front yard setback of not less than 65 feet from the centerline of all other public rights-of-way and private roads. ... (l)Rear yard regulations. There shall be a rear yard of not less than 30 feet to the dwelling or primary building in the RR district. There shall be a rear yard of not less than ten feet for a detached accessory building in the RR district. ... (n)Side yard regulations. There shall be a side yard of not less than 15 feet on each side of a dwelling in the RR district. There shall be a side yard of not less than ten feet for a detached accessory building in the RR district.
Full Breakdown
Blue Earth County Code Sec. 24-163 sets the RR district's yard setbacks section by section. Under Sec. 24-163(d), the front yard setback is 130 feet from the centerline of any federal, state, county, or county-state-aid highway, dropping to 100 feet from the right-of-way line for divided highways, and 65 feet from the centerline of any other public or private road; a corner lot needs that setback measured from every road it touches, and a cul-de-sac lot needs 32 feet from the property line at the cul-de-sac's exterior radius.
Section 24-163(d)(1) adds a built-in exception: new construction doesn't need a variance from the front setback as long as it doesn't sit closer to the road centerline than an existing structure on the same lot or on an adjacent lot. The rear yard, under Sec. 24-163(l), is 30 feet to the main dwelling and only ten feet to a detached accessory building. The side yard, under Sec. 24-163(n), is 15 feet on each side of the dwelling and ten feet for a detached accessory building.
Other setbacks in the same section cover a 30-foot bluff setback, a 75-foot county-ditch setback, and a 50-foot railroad right-of-way setback. Government buildings, and public and private schools, carry a heavier 50-foot lot-line setback under Sec. 24-163(o).
Violations & Fines
Building closer to a property line, road centerline, bluff, ditch, or railroad right-of-way than Sec. 24-163 allows is a misdemeanor under Sec. 24-44, punishable by a fine of up to $1,000.00, up to 90 days in jail, or both, with each day of the encroachment a separate offense. The zoning administrator can issue a stop-work order on a project that violates a setback, and an owner who needs relief must apply for a variance decided by the board of adjustment under Sec. 24-48.
Frequently Asked Questions
How far back from the road do I need to build in unincorporated Blue Earth County's RR district?
What's the side yard setback for a house in the RR district?
How close can I build to my rear property line?
Sources & Official References
Other rules in Blue Earth County
Compare Blue Earth County to another location·View the Minnesota building setbacks & zoning overview
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