States and cities are revising building codes to allow single-stair multifamily buildings, aiming to increase affordable housing while maintaining safety standards. Minnesota’s recent study may guide ...

Nashville's "smart stair" building code became official earlier in July, after it had passed the Metro Nashville Council. The change allows apartment and condo buildings to be built with a single ...

California weighs single-stair apartments above three stories, aiming to address housing costs and urban infill challenges.