Fairlie–Poplar contains many commercial and office buildings from the late 19th and early 20th centuries. Local interpretations of prevailing national architectural styles, including Chicago, Renaissance revival, neoclassical, commercial, art deco, Georgian revival, and Victorian styles, are found here. The buildings of the district also represent the shift in building technology from load-bearing masonry and timber walls to steel and concrete framing. Individual buildings listed in the National Register of Historic Places that lie within the Fairlie–Poplar Historic District include the Flatiron Building, Rhodes-Haverty Building, the Empire/C&S Building, the Healey Building, the Prudential/W.D. Grant Building, the Retail Credit Company Home Office Building, the Elbert P. Tuttle United States Court of Appeals Building.