The 57-story Spanish pink granite clad structure reaches a height of 673 feet, which at time of construction was the 10th tallest building in Chicago.

The residential portion of the building is known as “One Magnificent Mile Condominium Association” and is entered in the center of the block on the Michigan Avenue frontage.

Since opening, the building has been home to Spiaggia and Café Spiaggia two award-winning Italian restaurant dining rooms, headed by James Beard Award winner Tony Mantuano, a chef who is known for defining true Italian cuisine in the United States.

The commercial/retail portion also includes a Regus staffed office facility; Delle Amiche Hair/Nail Salon; Tods leather goods, and Morgenthal Frederics ultra high-end optical.

Located at the inside corner of the Gold Coast where Lake Shore Drive turns east and the "Magnificent Mile" (Michigan Avenue's glamorous shopping and hotel district) begins.

The building's construction barricade is captured in the popular 1981 movie Risky Business during the car chase scene.

When the building originally opened, it housed the exclusive specialty department store: Stanley Korshak on the first three levels of the southeast corner, POLO by Ralph Lauren on the Michigan Avenue façade, Optica and The United Colors of Benetton fronting on Oak Street.

The office space was home to popular 1980's advertising agency Tatham-Laird & Kudner, and the corporate headquarters for Beecham Cosmetics, makers of labels such as Jovan, and Yardley of London.