In 1921, Gateway moved into the Italianate Revival building designed by William Ralph Emerson as Cap & Gown's second clubhouse. This structure had been moved in 1907 to make way for Cap's present brick clubhouse, and at that point had been taken over by Dial Lodge. This redoubtable old structure became vacant when Dial finished the construction of its new stone clubhouse on the north side of Prospect, allowing Gateway to move in.

Gateway remained in this building from 1921 until 1927.