Behnisch Architekten was founded in 1989 as a branch office of Günter Behnisch‘s firm, Behnisch & Partner. The “Stadtbüro“, as this branch was called, developed under the leadership of Stefan Behnisch, and in 1991, it became an entirely independent firm, apart from Behnisch & Partner, with its own partnership structure and operations. Günter Behnisch continued to run his practice, Behnisch & Partner, until his retirement and the firm’s closure in 2005. For many years, Günter partnered with Stefan in the new office.