Michigan Gov. Whitmer signs single‑staircase housing code reforms

Michigan Governor Gretchen Whitmer approved two bills that modify the state construction code to allow single staircases in more multifamily buildings. One bill raises the permissible building height for a single staircase from three to four stories, while the other permits single‑staircase designs in structures under six stories that are served by an accredited fire department. Officials expect the changes to cut construction costs by about 10% and expand the supply of "missing‑middle" housing, offering more options between single‑family homes and large apartment complexes.

The reforms join a broader trend of states revising building codes to speed and cheapen housing development. While supporters cite cost savings and increased housing diversity, fire‑safety advocates note that additional exits can be crucial in emergencies, referencing a recent California fire‑marshal report that urged caution.