In 1780 he traveled to South America, to Santiago in the colonial Captaincy General of Chile at the request of the Royal Governor Agustín de Jáuregui and the Archbishop Santiago Manuel de Alday y Aspée, who engaged him to design the Catedral de Santiago de Chile (present day Santiago Metropolitan Cathedral).
In 1780, he journeyed to South America, to Santiago in the colonial Captaincy General of Chile at the request of the Royal Governor Agustín de Jáuregui and the Archbishop Santiago Manuel de Alday y Aspée, who commissioned him to design the Catedral de Santiago de Chile (present-day Santiago Metropolitan Cathedral).