The New York Life Insurance Building is a 14 story building at 39 South LaSalle Street in the Loop neighborhood in Chicago, Illinois. Designed by William Le Baron Jenney, it was completed as a 12 story structure in 1894 at a cost of US$800,000. In 1898, Jenney designed a 92 ft (28 m) addition to the east of the original structure. This expanded the Monroe Street facade to 233 ft (71 m). The addition contained 13 floors and an additional floor was added to the first structure. The expansion also added an entrance on Monroe Street and enlarged the lobby.