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 expertise from urban development to building design and education. As a leading figure in Naples during the 1580s, he created innovative designs for the city's port and fortifications that were not ultimately realized. He then shifted his focus to teaching, potentially including medical instruction as well.