The present research aims to propose a model for the recovery of residual public spaces to improve the quality of life of the district of San Borja´s inhabitants. San Borja is in the process of densification and requires a more significant number of public spaces that offer, in addition to vegetation, public places for active and passive recreation, such as spaces for sports and games, walking pets, and relaxation. These needs have increased due to the confinement caused by the COVID-19 pandemic. Also, it was noted that the median strip, or central reservation of the avenue, can be recovered for people to use. Therefore, a four-phase study was carried out that included reviewing the literature and observing two cases. In conclusion, a model was proposed to recover the public space of the median strips of San Borja Norte Avenue and San Borja Sur Avenue to improve the quality of life of the inhabitants of San Borja, which can be replicated in other avenues with residual spaces with similar characteristics.