The concept of security, with its various dimensions, is fundamental to the field of ageing literature. However, feeling safe does not always equate to feeling at ease or being comfortable with people and places. Building on these premises, this article presents and analyses the factors involved in the perception of security and social safeness among women ageing in a top-down co-housing project and a nursing home in Italy. This country has one of Europe’s oldest populations, and the ageing population phenomenon is particularly notable in the Veneto region. In response to changing demographics, the search for alternative housing solutions and associated innovative paradigms of care and support has been gaining ground in recent years. Our study analysed data gathered from women who decided not to age in place. Fieldwork was carried out in one of the most densely populated provinces in the Veneto region during 2022 and 2023. The methodology was qualitative and consisted of in-depth interviews, a focus group and a workshop. Participants were 11 self-sufficient older women, aged 75 and over, living in these facilities. Among the elements that contribute to the perception of social safeness, the following stood out: material and structural factors, physical and emotional factors, relational factors and factors linked to independence and autonomy. Finally, the article stresses the need to study social safeness in greater depth, as it could become a new line of social science research capable of providing relevant information on the housing needs of older adults.