Anoka County, MN Fence Regulations: Retaining Walls (2026)
Key Facts
- Permit trigger (Coon Rapids)
- Wall 4 feet or taller
- Measured from
- The footing
- Walls in D&U easement
- Not allowed
- Fire hydrant access
- Must stay clear
- Who regulates
- City, not Anoka County
Summary
Retaining walls are regulated by your city, not Anoka County. In Coon Rapids a building permit (and possibly a variance) is required for any retaining wall 4 feet or more in height measured from the footing, and walls are barred from drainage and utility easements.
A Building Permit ... is needed for ... any retaining wall four (4) feet or more in height, measured from the footing. ... Walls are not allowed within drainage and utility easements. No fence or wall may obstruct free access to any fire hydrant.
Full Breakdown
Retaining-wall requirements are set at the city level in Anoka County under Minn. Stat. §462.357. In Coon Rapids, a building permit is needed for any retaining wall four feet or more in height, measured from the footing; shorter walls need no permit but must still meet zoning and building standards. Unlike fences, walls are not allowed within drainage and utility easements, and no wall may obstruct free access to a fire hydrant. Taller engineered walls typically require structural plans. Check your own city's building division, as thresholds can vary slightly.
Violations & Fines
A wall 4 feet or taller built without a permit can be red-tagged for engineering review or removal; walls placed in a drainage/utility easement may be removed by the city or utility without compensation.
Frequently Asked Questions
Do I need a permit for a retaining wall in Coon Rapids?
Can I put a retaining wall on an easement?
Sources & Official References
Other rules in Anoka County
Compare Anoka County to another location·View the Minnesota fence regulations overview
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