In this new Housing LIN blog, Elisa Pozo Menéndez, an architect and urban designer specializing in Sustainable Cities and Healthy Ageing in Spain, writes about her experience Covid-19 in Madrid. In particular, she describes the importance of the way informal networks were established to provide community support, the resultant connectivity and neighbourliness offered to combat loneliness and isolation, and how the links made are now being sustained to generate a new self-managed mutual support.