With the aging global population, the relationship between older people and their residential environments is increasingly important. This relationship is based on the match between the individual characteristics of a person, their needs and expectations, and the characteristics of their environment. By creating access to various health improvement factors and exposure to various risk factors, the conditions under which an individual ages can be modified. This helps to accelerate or decelerate the process of incapacitation that individuals undergo as they age. This can also reduce or reinforce socio-spatial inequalities, which underlie the preponderant role of territory and spatial policies in the prevention and promotion of healthy aging. This chapters supports the process for developing the Decade of Healthy Ageing (2020 – 2030) aligned to the Sustainable Development Goals (SDG3).