In 1946, property surrounding the Adams Street factory was bought to expand printing operations (when completed in 1949 the factory occupied an entire block bounded by Adams, Sands Pearl and Prospect Streets) and five more properties adjoining 124 Columbia Heights were purchased for a 10-story building. In the late 1950s a property at 107 Columbia Heights, across the road from 124 Columbia Heights, was bought and by 1960 a residential building for staff was constructed there. More residences were built at 119 Columbia Heights in 1969.