Rendering by 3DCOW
Apartments comprised of a series of directly connected rooms—without a hallway—are a common feature of the New York City housing market. Generally, this layout is described as a “railroad apartment.” It is important to note, however, that depending on where you are in the United States, the “railroad” may, in fact, refer to a very different type of layout—namely, an apartment with a series of rooms connected by one long hallway. Indeed, in many other U.S. cities, “shot-gun apartment” is the more commonly used term for an apartment where rooms are connected without a hallway, and in some cities, these apartments are also described as “floor-through apartments.”
Whatever you call them, the layout nearly always comes with its share of pros and cons. At their best, this apartment layout offers considerably more space at a lower cost than a conventional layout and desirable pre-war details. At their worse, this layout offers nothing but a dark and dank space that can be especially awkward when shared by roommates rather than couples.