[5] Her travels for the European release and film festival circuit of Vincent and Me introduced her to a sensibility of fashion, architecture, and style that she had not yet been exposed to in the woods of Nova Scotia.

Visiting her ancestral Italy, where her father learned sculpture, is what initially piqued Nina's interest in interior design, home building, and furniture.

[6][7] Petronzio founded her Melrose Avenue interior design firm and furniture line, Plush Home in West Hollywood, California, with her husband Steven Ho in 2003.

[8] Known for her celebrity and discerning clientele, Petronzio is well known for her high-end, transitional style interior and furniture designs, fabric selections, and custom home plans.

[9][10] Production Designers have specified Petronzio's furniture line in their film and television projects, including Spider-Man 2, Mission: Impossible 2, Curb Your Enthusiasm (2009), Nip/Tuck, The Island and Heroes.