 In contrast, facadism generally involves retaining only one or two street facing walls for purely aesthetic and decorative purposes.Facadomy is a practice in postmodern architecture reaching its peak in the latter half of the 20th century.The setback or podium architecture technique gives an illusion of integrity to the original building by visually separating the old from the new, helping to mitigate farcical effects such as the floors and windows not lining up or a dramatic clash of styles.