Stephen Dayton is a founding member of Thomas Phifer and Partners, having joined at its inception in 1997. He has been a partner since 2004. He has been responsible for the design and management of such diverse projects as the United States Courthouse, Salt Lake City, Utah, office tower designs in Washington, DC and Boston, a prototype modular office building for Steelcase Furniture, the renovation of courtrooms for the United States Bankruptcy Court in Phoenix, Arizona, and a 6,000-square-foot residence in the Hudson River Valley.