He began his career as a sculptor, and numerous sculptural works within Rio de Janeiro's churches have been attributed to him.
João Francisco Muzzi's painting includes Mestre Valentim presenting architectural plans to the viceroy.
One of his most ambitious projects was the design of the Passeio Público of Rio de Janeiro, the first public park in Brazil.
The sculptural works of the park include stylized entrance gates; two obelisks; statutes of Greek gods and Brazilian plants and animals; and several fountains.
Rachel Zimmerman, "Mestre Valentim, Passeio Publico, Rio de Janeiro," in Smarthistory, May 19, 2019, https://smarthistory.org/valentim-passeio-publico/.