The east-bound station, is brick and was built in 1882. It replaced a station burned by a fire, and "is typical of the substantial brick stations built at small-town stops throughout the state in the period. Whereas earlier stations had been small wood-frame buildings, often in a picturesque Gothic or Italianate style, the stations of the 1880s were brick" to be fire-resistant and were larger to accommodate larger waiting areas and other amenities. They were "well-built but utilitarian" structures. The west-bound station, on the other hand, "stands as an excellent example of the New Haven Railroad's 1890s passenger facilities" reflecting changed priorities. It is a wooden structure. The stations as a pair were listed on the National Register of Historic Places in 1989. According to the 1988 NRHP application:
The Fairfield railway stations are significant as reminders of the important role of railroad passenger service in the historical development of Fairfield, as artifacts of the New Haven Railroad, a company that virtually monopolized the state's public transportation at the end of the 19th century, and as well-preserved examples of small-town station architecture.
The listed area was defined to include the two stations and their immediate surroundings, but to exclude a passenger cross-over and stairway, and to exclude associated parking areas.
Station layout
The main station house is wooden and on the northern platform. It contained a ticket window that was closed July 7, 2010. All tickets must now be purchased from vending machines adjacent to the platforms. Westbound trains stop on this side of the station. The station house on the south side is made of brick and entirely filled with businesses, including the Nauti Dolphin Pizza restaurant and the Fairfield Cab Company. Eastbound trains stop at this side of the station. The busy Unquowa Road overpass crosses the eastern end of the station. In order to cross from one platform to another, passengers must climb a staircase to this overpass and walk on the road's sidewalk across the tracks. Then, they must descend another staircase on the other side. This station has two high-level side platforms, each six cars long. The northern platform, adjacent to Track 3, is generally used by westbound trains. The southern platform, adjacent to Track 4, is generally used by eastbound trains. The New Haven Line has four tracks at this location. The two inner tracks, not adjacent to either platform, are used only by express trains except when track 3 or 4 is closed for maintenance.
