Minnesota State Building Code, adopted under Minn. Stat. 326B, requires sprinklers in new multifamily, hotel, and most assisted-living buildings. New single-family homes generally do not require sprinklers after a 2017 Minnesota Supreme Court ruling.
Hennepin County cities enforce the Minnesota State Building Code adopted under Minn. Stat. 326B. Sprinklers are required in new multifamily buildings (R-2), hotels, and most licensed assisted-living and boarding-care facilities under NFPA 13 or 13R. New one- and two-family homes were briefly required to have sprinklers, but the Minnesota Supreme Court struck down the rule in 2017, leaving sprinklers optional in new single-family construction. Existing buildings undergoing major renovations, including soft-story conversions and large additions, may trigger sprinkler retrofit requirements set by city building officials and fire marshals.
Construction without required sprinklers, failure to maintain a system, or disabling sprinklers can result in stop-work orders, denied certificates of occupancy, and Minnesota State Fire Marshal enforcement that may include fines and license actions.
See how Bloomington's fire sprinkler requirements rules stack up against other locations.
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