Is it a code violation for an apartment not to have at least one working toilet?

A working toilet is considered a fundamental requirement for a habitable living space. Building codes and health regulations often mandate that residential units must provide essential facilities, which include at least one functioning toilet. The absence of a working toilet impairs the ability of residents to maintain necessary hygiene and sanitation, making it a significant code violation. These regulations are designed to ensure safety and health for all occupants of residential properties. Thus, it is indeed a code violation if an apartment lacks at least one working toilet.