What is a duplex home? A [duplex](https://wallinsiders.com/blog/what-is-a-duplex/) is a type of residential house where there are two distinct living spaces in the same structure. These units are usually separate and have their own entrances, kitchens, bedrooms, and lounges. Duplex houses make great choices for families looking to reside together or generate extra income through renting out a unit. [Wallinsiders](https://wallinsiders.com/) can assist with the design and construction of duplex houses in ways that work efficiently within the available space.