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 ...

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​In the U.S., cities such as Seattle and New York now permit new single exit stairway buildings, as does the state of Hawaii.

American land-use reformers intent on addressing present-day housing shortages have, for the last decade, focused their efforts on amending zoning codes—the very rules that gradually downzoned most ...

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 ...