By the late 1950s , the increased demand for its products necessitated Western Electric building a larger facility .
Plans were developed for a 200,000 - square - foot ( 20,000 m ) building at the North 11th Street site .
By the late 1950s , the increased demand for its products necessitated Western Electric building a larger facility , so plans were developed for a 200,000 - square - foot ( 20,000 m ) building at the North 11th Street site .