Built in 1895, 311 Montgomery Street was originally designed for the Central New York Telephone and Telegraph Building. Designed by architect Henry W. Wilkinson - the same architect who designed the building that now houses the Onondaga Historical Association located next door - 311 Montgomery Street was one of the first commercial buildings constructed between the blocks of Fayette and Jefferson Streets. The property's connection to an early local communications company, plus the high quality of Wilkinson's architectural composition - which features decorative brick work and terra cotta ornamentation - has earned it a listing on the National Register of Historic Places.

311 Montgomery Street was given to the Onondaga Historical Association in 1906, which used it as a research and collections storage facility until 2005.

In the present day, the building remains a mixed-use property. The first floor is the home of the law offices of Lourdes R. Rosario, Esq. The second floor features an open floor plan ideal for residential or office accommodations, featuring a fireplace and one bathroom. On the floors above, there are four unique luxurious apartments, each tailored to a different living experience.