Historically, walls have not only been erected as a protective structure to defend private property; The walls have also been built with the desire to protect against migration, popular insurgency, drug trafficking, smuggling, terrorism and now against the citizen insecurity that cities suffer. In that sense, in Lima – Peru a wall is built in the middle of the public space; between the exclusive neighborhood of Las Casuarinas (district of Santiago de Surco) and the lower class neighborhood of Pamplona Alta (district of San Juan de Miraflores). In this way, with a purely qualitative methodology, this research focuses on showing the narratives and urban imaginaries that construction and real estate companies build regarding the aesthetics of how to live and act in space. Thus, through different visual and material strategies, it is shown how real estate agencies sell imaginaries and discourses that are closely related between space, aesthetics and social class; where an important element ends up being the wall of difference for some (Las Casuarinas neighborhood) and the wall of shame for others (Pamplona Alta neighborhood)