housemate
n. B1 Intermediate UK //hˈaʊsmeɪt// house·mate
n. a person who lives in the same house as you but is not your family. You usually share the space and the bills with them.
n. a person who shares a house with another person or group of people but is not a spouse or close relative.
I live with two housemates in a small apartment.
After the move, my housemate and I had to split the cleaning duties equally to keep the kitchen tidy.
While living with a housemate can be a great way to reduce monthly expenses, it often requires a significant amount of communication and compromise regarding personal habits and shared spaces.