Urban recycling is the action that occurs when a community or society obtains resources and raw materials from the waste of its community or other surrounding communities with the intention of leaving public spaces free of garbage and reusing it for the benefit of the community.

An example of this is the ecological walls that adorn some parks or buildings; They use PET material bottles to plant plants and these are joined in the form of a network with materials such as wire and cables. An example of an ecological wall can be found in Horno 3 of Fundidora Park in Monterrey Nuevo León, Mexico.

Urban recycling is also known as the use of spaces that were abandoned or forgotten, whether factories, workshops, warehouses, docks, military installations, among others, and that have been readapted or conditioned to give them a new use, whether public or private.

An example of this are parks created in nature reserves, museums created in archaeological zones or in old military installations. The metropolitan ecopark of the city of Puebla, Mexico was built to rescue a natural reserve that had been used as an amusement park called Fantastic Valley; The government of the city of Puebla, headed by Governor Rafael Moreno Valle Rosas, calls this project "the first breath of a new lung for Puebla."