The Shrine of Our Lady of Guadalupe was formally established as a Shrine by the late Francis Cardinal George O.M.I. in 2013 whereupon he named the Very Rev. Marco Mercado to be its first Rector. Fr. Marco assumed the responsibility of developing a plan for the Shrine of Our Lady of Guadalupe. Indeed, since 2010 plans for the development of the Shrine were underway under the leadership of the, then Director of the Cerrito del Tepeyac, Fr. Manuel Martinez. Back then the preliminary work to evaluate the possibility of constructing a large church dedicated to Our Lady of Guadalupe was under way. The mission and goal of this project was to support the faith in the Church of Chicago and beyond through fostering a strong devotion to Our Lady and provide spiritual and sacramental services to all pilgrims who visit the Shrine. Unfortunately, the project remained at the concept level and a true development plan was not able to materialized.
Under the leadership of Fr. Marco Mercado, a renewed effort was taken up to form a plan and begin the development of the Shrine. In 2014, recognizing that the Shrine did not have an enclosed worship space or chapel for nearly 6000 worshipers who attend services each weekend, Fr. Marco anounced his intention and plans to repurpose the north gym of Maryville and convert it to a chapel. He began work on a design for the chapel as a first step towards the development of, one day, building a new Basilica.