Also known as tri-plexes or multi-plexes, Multi-Unit House Plans include several separate and distinct living spaces within a single building. The actual appearance and design of these home plans can vary significantly, adopting a wide range of architectural styles and internal floor plan configurations. The main distinguishing feature of Multi-Unit House Plans is that each building contains stand-alone living spaces separated by walls or floors. Some home plans carry the appearance of multiple separate facades placed side by side, giving the impression that the building is actually several units extending in a row when it is in fact one continuous building. Another configuration common among Multi-Unit House Plans involves the outward appearance of one single, large home, which actually extends back into the lot to accommodate each unit. This home plan style is frequently seen on narrow lots or in areas with limited space.
The interior floor plan of Multi-Unit House Plans contains contiguous divisions between each unit, which offers residents complete privacy and security. Some units may include a single shared entryway that leads to separate doors for each unit, such as with an apartment complex, while others may place all doors on the exterior of the home plan for a greater degree of separation. The individual units can also vary in size significantly, ranging from economic studios to expansive spaces with upwards of three bedrooms. While it is common for Multi-Unit House Plans to keep each unit to a single floor, some multi-story home plans may spread one or more units across each floor. These buildings typically also do not feature garages or patios, though some may include a front porch or shared backyard.