What is the key characteristic of a dwelling unit?

A dwelling unit is defined primarily by its function as a self-contained living space that includes essential provisions for living, sleeping, and cooking. This characteristic is fundamental because it establishes the unit's ability to support the basic needs of individuals or families. The inclusion of these areas means that the space is adequately equipped for residence, allowing occupants to perform daily activities such as sleeping in a dedicated area and preparing meals.

This definition does not restrict dwelling units to any specific type of ownership or rental status, nor does it dictate the number of units in a building or their geographical location. As such, while the options relating to rental purposes, urban settings, or shared facilities might reflect certain scenarios, they do not encapsulate the core essence of what fundamentally characterizes a dwelling unit. The focus on living, sleeping, and cooking provisions distinctly highlights the primary features that define a residential environment.