The national Delta Phi Fraternity was founded at Union College in Schenectady, New York, on November 17, 1827. The Pi chapter of the Delta Phi, its sixteenth chapter, was incorporated on June 5, 1891, at Cornell University. The brothers of Delta Phi at Cornell currently reside at 100 Cornell Avenue, formerly the Cornell family mansion.

The elegant mansion known as Llenroc ("Cornell" spelled backwards) is the last existing building associated with the personal life of Ezra Cornell. Regarded as Ithaca's finest residence, it is an outstanding and exceptionally well-preserved example of high style masonry Gothic Revival architecture.

Llenroc remained in the Cornell family's possession until 1911, when the house was purchased from the family by the Delta Phi fraternity. The brotherhood occupies the house to this day, and its name has become synonymous with the Delta Phi chapter at Cornell. The house is currently listed on the National Register of Historic Places.

At A.D. White's suggestion, Ezra Cornell had inscribed above Llenroc's main entranceway the motto "True and Firm." As you walk through Llenroc, you will find something more than a stately mansion; you will find a group of young men determined to live up to that motto. As an independently owned and operated fraternity, Delta Phi is large enough to be a leader on campus; to succeed academically, excel athletically, and thrive socially in a diverse environment. At the same time you will discover a fraternity small enough to maintain close-knit brotherhood through mutual respect and life-long friendship.

Through this website, we invite you to learn about our home…and an organization that provides opportunities to excel in every aspect of college life.