The Wohnbaugenossenschaft in Frankfurt am Main eG (WBG) has provided housing to Frankfurt residents for 75 years. Founded in 1950 to address the housing needs of displaced persons and refugees after World War II, the cooperative has evolved into an organization serving approximately 830 members across roughly 31 properties with around 682 apartments scattered throughout various Frankfurt neighborhoods.
The cooperative's first residential building with 20 apartments was completed in 1952, when membership stood at 262. By its 25th anniversary in 1975, the organization had grown to 727 members, 93 buildings, and 583 units. The cooperative expanded through strategic mergers, including the 1966 fusion with the Evangelische Baugemeinde in Sindlingen, which added 114 apartments, and the 1992 merger with the Evangelische Baugemeinde Frankfurt/Main-Nord in Eschersheim, contributing 48 units.
In 1992, the organization changed its name from Baugenossenschaft der Ostdeutschen Landsmannschaften to its current designation to signal that its cooperative housing mission extends to all Frankfurt residents, not just specific groups.
The WBG has demonstrated commitment to sustainable construction. In 2012, it became Frankfurt's first cooperative to build a passive house on Breuerwiesenstr. The organization also pioneered communal living projects, launching its first such initiative, FamilienSinn, in 2014. In August 2025, the cooperative completed a new building in the Ostend district near a local church, welcoming new members into recently finished apartments.