What is the difference between a One Bedroom and a Junior 4 (JR4 or Junior Four)?
A one bedroom is a typical apartment layout with a kitchen and living area. A Junior 4 (Junior Four) or JR4 generally includes a dining alcove or other type of alcove in addition to the typical one bedroom layout. The “4” comes from four rooms, including the bedroom, kitchen, living area and alcove (dining area or other extra area). Depending on the size of the alcove, it may be possible to convert the space into a second bedroom, home office or small den.
Here are example floorplans for one bedroom (left) and junior four (right) layouts:
Note: Layouts can vary widely from building to building.