Multi-unit housing refers to residential buildings that contain multiple separate living units. These can include apartments, condominiums, and townhouses, allowing several families or individuals to live in close proximity. This type of housing is often designed to maximize space and resources, making it a popular choice in urban areas where land is limited. Multi-unit housing can offer various amenities, such as shared recreational facilities, parking, and maintenance services. It is typically managed by a property management company or homeowners' association, which helps maintain the common areas and ensures that residents adhere to community rules and regulations.