[6][7] Ezra Cornell employed numerous European artisans in its construction, including English woodcarvers and German stonemasons.

:[12] In October 1906, Cornell University Professor Burt Wilder recalled, "Perhaps the best exemplification of the duality of his nature was offered by his indifference to the impression made by his rather shabby vehicle, horse, and even that, as contrasted with his genuine and superior artistic pleasure in the execution of carvings for his projected residence.

"[13] At A.D. White’s suggestion, "True and Firm: was carved on the stone riband above the house’s front door[14] which Alonzo Cornell said represents the principal entrance and is characteristic of the building in all its detail.

The house's stone exteriors feature three-foot thick masonry walls and a variety of carved capitals, arches, and turrets.

[17] The outdoor Stairway, built in honor of Arthur's son Morgan Smiley Baldwin, Cornell Class of 1915, who was killed in World War I, connects Cornell Avenue and University Avenue and is located at the southwest corner of the property.

[16] White wrote the chapter a letter of congratulations, in which he stated, “The music of the University chimes comes down from the library tower upon the whole place morning, noon, and evening, as a benediction.

[20] Llenroc is featured in many books about the University, Ezra Cornell, and Central New York State.