Saint Anthony Convent was built next to the Worker’s Circle of Bahia, on land donated by the organization, through the initiative of Friar Hildebrando Kruthaup, spiritual advisor to Saint Dulce of the Poor. The priest presented the idea to the leadership of the Congregation of the Missionary Sisters of the Immaculate Conception of the Mother of God, which was immediately approved.

The young engineer Norberto Odebrecht was responsible for its construction. The building's keys were handed over on June 12, 1948, and on June 29, Saint Dulce of the Poor was appointed as the Convent's first mother superior. The inauguration took place on July 25, 1948, with a Mass celebrated in the Saint Anthony Chapel by Archbishop Primate His Excelency Augusto Álvaro da Silva. The Germanic-style building could accommodate up to six nuns.

Saint Dulce of the Poor lived here from 1948, the year the Saint Anthony Convent was built, until March 13, 1992, the day of her death. Also in this work of love and faith were Saint Teresa of Calcutta, when in 1979 she came to Salvador to found a house for her Congregation in the Alagados neighborhood, and Saint John Paul II, who blessed the Good Angel on his sickbed on October 20, 1991, when he was in Salvador on his second official trip to Brazil. This was Saint Dulce of the Poor second encounter with Saint John Paul II.
For 43 years, Saint Dulce of the Poor lived in this place, facing 16 months of illness before passing away on March 13, 1992. In 1993, part of the building was adapted to house the Saint Dulce of the Poor Memorial, preserving an annex for the residence of the Congregation's nuns.