The black and white primary bathroom has black French doors. Photo by Zio and Sons .What Is a Primary Bathroom? A primary bathroom is a room that is connected to the house’s primary, or largest, bedroom in a home. A primary bathroom can also be called an en suite, master bathroom, or an attached bathroom. An ensuite primary bathroom should include something unique that the other bathrooms in the house do not have, whether that is more space, a luxurious garden tub, a built-in dressing table, a double shower, a chandelier, patterned tile, or anything else that makes it feel…