Instead, he turned his attention to architecture and teaching. He became, in the 1580s, a topographer for the city of Naples, and developed new plans for the city's port and city wall, neither of which were implemented. Instead, he turned to teaching, perhaps medicine as well as architecture.
He redirected his efforts towards building design and instruction. He served as a leading topographer in Naples during the 1580s, crafting novel plans for the city's seaport and defensive walls, neither of which were implemented. He then shifted to pedagogy, possibly including medical education.