In 1900, Miller was retained to design an addition to the original 12 x 15 foot dining room.

He enclosed the loggia on the west side of the building to add 500 square feet.

[6] In 1910, the fraternity hired the architectural firm of Gibb and Waltz of Ithaca, New York to design a new addition on the east side of the house.

In response to objection of the professor occupying 9 South Avenue, Cornell required that the new east wall of the house not have any windows "except such as may be stationary and glazed with cathedral or prism glass or otherwise so that the interior may be invisible from the outside".

In 1991, the building was added to the national register, and in 2003 the City of Ithaca designated it a Landmark.