Which type of residential property is characterized by multiple individual units sharing a common structure?

The type of residential property characterized by multiple individual units sharing a common structure is a condominium. Condominiums are divided into individually owned units, where residents own their specific units and share ownership of common areas such as hallways, pools, and recreational facilities. This arrangement allows for a community feel while also providing private ownership.

In contrast, single family residential properties involve standalone homes that do not share walls or common structures with other living units; each house is its own entity. Cooperatives, while they may share structural elements like condominiums, operate under a different ownership model where residents own shares in a corporation that owns the property, which complicates the idea of individual ownership and structure. Commercial properties, as the name suggests, are used for business purposes rather than residential living and do not fit the description of residential units at all.

Thus, the condominium stands out as the correct answer because it specifically embodies the concept of individual units within a shared structure.