There are several different types of multi-family developments, including:Apartment buildings: Apartment buildings are the most common type of multi-family development. They typically consist of multiple floors of apartments, each with its own kitchen and bathroom.Condos: Condos are like apartment buildings, but each unit is owned by a different individual or family. Condo owners have more control over their units than apartment renters, but they also must pay more for maintenance and repairs.Townhomes: Townhomes are attached homes that share walls with other townhomes. They typically have more space than apartments, but they are also more expensive.Co-ops: Co-ops are like condos, but they are owned by a cooperative association. Co-op owners must buy shares in the association, and they are responsible for paying monthly maintenance fees.