[3] A native of The Bronx, New York,[4] of Italian American descent,[5] he was inspired to become an architect at the age of about 13 when he saw the then-unfinished Guggenheim Museum, which was designed by Frank Lloyd Wright.
[6] Ranalli attended Mount Saint Michael Academy high school in New York City and graduated in 1964.
[9] Early on, architecture critic Paul Goldberger described Ranalli in a New York Times article as one of the "better younger architects" working in the Modernist idiom.
[10] Goldberger stated that Ranalli's designs were tied "as closely to the ancient craft of building as to the modern business of churning out huge commercial projects, yet they bespeak a consistent awareness of the realities of our age as well.
[13][14] Architecture critic Ada Louise Huxtable wrote that Ranalli's "purpose is to move modernism into an enriched and more deeply referenced style.