Railroad apartment
From Wikipedia, the free encyclopedia
A railroad apartment is an apartment with a series of rooms, connecting to each other in a line. A hallway typically runs the length of the apartment or flat from the front door to the back door, outside each room. This is similar in design to a railway car. This usage is most common in New York City, San Francisco and nearby areas. Railroad apartments are common in brownstone apartment buildings.
Sometimes confused with a shotgun house, which is just a series of rooms connected directly, with no hallway, railroad apartments do typically have hallways. However, rooms may also connect directly, such as with panel doors that connect the living room to the dining room.
Also referred to as a "railroad flat."