The frame house at 2911 N. Florissant Avenue is, to put it mildly, derelict. The rear half of the house has collapsed and the front has a severe lean. Owned by the city's Land Reutilization Authority and vacant since 1996, the house has reached a point where demolition -- either by condemnation or simple collapse -- is a foregone conclusion.
That conclusion is sad, because the house itself is quite a unique specimen of that peculiar house type known as the flounder house. Historians have only found the flounder house form in St. Louis and parts of eastern Virginia. The origin of the flounder house is unknown, but the form is easy to spot: the roof slopes sharply from one side of the building to the other. The form garnered its name because the roof pitch made the house look like half of the head of a flounder fish.
In St. Louis, there are probably less than 30 flounder houses left. Most are small one-and-a-half-story homes, but a few are two-and-a-half stories tall. Benton Park, Gravois Park, Marine Villa, Soulard, Old North St. Louis, St. Louis Place and Hyde Park all have flounder houses. The noteworthy thing is that, of all of the examples that are known to survive, the house on North Florissant is the only frame flounder house. While others may exist, perhaps altered beyond recognition, none have been identified by historians at the Cultural Resources Office or Landmarks Association of St. Louis. The house in Hyde Park is quite unique.