De Blasio, who also toured the city on Monday, described his first Melbourne flat white as "excellent but not unprecedented", comparing it to Italian coffee. Along with world-leading urban planner Carlos Moreno, he gave mixed reviews to Federation Square, praising the Yarra River but noting the square lacked shade and greenery.
In his address, de Blasio is expected to argue that affordable housing supply has failed to keep pace with population and employment changes. "A city without enough affordable housing will simply fail," he said.
The $350 million funding commitment is part of the federal government's bonus scheme for improving services, with Victoria the first state to qualify. The funds will target community infrastructure in fast-growing suburbs and regional centres.
Melbourne Lord Mayor Nick Reece also addressed the forum. A panel discussion on shaping the city featured de Blasio, former Victorian premier Steve Bracks, Grattan Institute chief executive Aruna Sathanapally, and other experts.
Prime Minister Albanese is scheduled to speak this afternoon, with the Assembly's themes for the day focusing on shaping the city, and innovation and education.