The parish of São Judas Tadeu was created on January 25, 1940, by decree issued by Dom José Gaspar de A. Fonseca e Silva, Metropolitan Archbishop of São Paulo. Another 24 parishes were created at the same time. The city was growing and needed more churches. A poor hall, on Avenida Felício Fagundes, was rented and transformed into a chapel, where masses and other sacraments were celebrated. The branches of a tree functioned as the steeple of an old bell that summoned the faithful to an encounter with God. The new parish was entrusted to the Southern Brazilian Province of the Priests of the Sacred Heart of Jesus (Dehonians). On March 17, 1940, Fr. João Buescher took office as the first parish priest of the new parish of São Judas Tadeu Apostle.
Foot. João Buescher, a person of great dynamism, looked for a good piece of land and, with the help of the community, built the first church, still provisional, which replaced the improvised chapel. In the following year, immediately after the construction of the provisional church, he began the definitive one, inaugurated in April 1944, and today known as the Old Church. At that time, São Judas Tadeu was an unknown saint. The parish priest then began to share his story with the community. He had many forms made with the image and prayer of the Saint and personally distributed them at bus stops, on trams, at Praça da Sé and when visiting families in the central districts. At the same time that he asked for help to build the church, he publicized the Patron Saint.