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Michigan signs single-stair rules allowing smaller multifamily buildings
The framework lets developers use one interior exit stairway in multifamily projects up to six stories, with two tiers for up to four stories and for five to six stories.
Michigan enacted a two-bill “single-stair” framework that permits one interior exit stairway in multifamily buildings up to six stories, Gov. Gretchen Whitmer signed the legislation into law this week, according to HousingWire.
Supporters argue the change reduces design constraints for small lot infill and makes multifamily construction more feasible, HousingWire reports, while opponents have raised concerns about firefighter access and resident egress.
HousingWire also notes the reform breaks from the International Building Code two-staircase requirement for residential buildings taller than three stories. The outlet says Michigan becomes the latest state to adopt a similar threshold after states such as Colorado, Texas, and Montana.
HousingWire further says housing advocates view the single-stair win as momentum for a broader “Housing Readiness” package in the legislature. The article also describes how other jurisdictions, including Tennessee and Washington, D.C., have pursued comparable approaches, while fire officials often oppose the changes on safety grounds.