Colonnade Row Westchester marble and linked with a colonnade of Corinthian columns providing the homes with their current name. The marble for the buildings was found at Sing Sing, where the convicts worked to cut it for use in construction. The precise year of the buildings' construction, as well as the architect responsible are subject to some debate. The architects generally credited with Colonnade Row's design is Alexander Jackson Davis, Ithiel Town, and James Dakin, who were believed to have designed the homes for the Astor and Vanderbilt families. Town and Dakin are believed to have begun work on the project, which
Royal Automobile Club of Australia building casebook example of the features and aesthetic aspirations of this architectural style, as transposed from the United States to Australian - and here particularly Sydney - conditions. This aesthetic/architectural significance is enhanced by the relatively high degree of intactness of the building's major features and fabric, particularly on the main exterior elevations, including the face-brick and stonework, steel windows and doors, and the fine stone and wrought iron colonnade. Internally, key spaces such as the main entry hall with its marble floor and column cladding, the dining room with its coffered ceiling and lead-light glazed dome and major function and