3.4 billion people worldwide lack access to adequate housing, secure tenure, basic services, or affordable living conditions, including over 1 billion people living in informal settlements and slums. As urban populations rapidly grow, access to adequate housing is becoming a defining challenge for cities worldwide. Poor housing conditions, overcrowding, barriers to accessibility, and exposure to heat, cold, air pollution, and environmental hazards can negatively affect health across a person's life course. At the same time, investing in healthy housing can generate significant benefits for individuals, communities, and health systems. Globally, "housing for all" has become a catchphrase, yet urban planners and those tasked with providing affordable, sustainable housing are falling below the standard. Sadly, the "tenement yard" or "big yard" remains a reality for many residents, bringing along numerous social issues. Housing is far more than just a roof...