Located on one of the hills of the former Hacienda San Diego, property of the Ibarras, which grew sugar cane and distilled rum and spirits, this modest building has had an important role in history. The house was a stopping point for Baron von Humboldt in 1799. Bolívar stayed there on his last visit to the city, where, together with José María Vargas, he wrote the decree to found the Universidad Central of Venezuela in 1827, which would function at the Convent of San Francisco in downtown Caracas, without suspecting that a hundred years later it would be moved to this land. In 1943 Medina Angarita bought the hacienda to construct the new university, keeping the house that would be declared a National Historic Monument in 1970. Made with stomped dirt, thick walls with white lime finish, and cane ceilings covered with clay tiles, it has been altered over time, but preserves its original concept. Consisting of two different hierarchy courtyards (one for the domestic areas and a larger one for storage), and a perimeter corridor typical of old hacienda houses, it represents the essence of local colonial architecture, whose values were reinterpreted by Villanueva in his work, particularly in Ciudad Universitaria. The tower of the sugar mill was preserved as a testimony of the past. This colonial piece now houses the original plans and documents of the Ciudad Universitaria project.