House Plan provides a way to visualize how people move through the space. As you see from the house plans below, it makes it easier to check if the space is suitable for its intended purpose, work through any potential challenges and redesign before moving forward into more elaborate planning or building stages. As you see from the house plan diagram below, the most common house plan features are bedroom, bathroom, kitchen, hall, laundry room, and living room. It should be noted here that house plans use several lines and symbols to convey the relationship between objects, like Dimension lines, wall, Partial height wall, thin solid lines, thin dotted lines, North Arrow, Doors, Toilet, and more.