Philip Treacy the Fashion Design course at the Royal College of Art in London, and graduated in 1990 with first class honours. In 1989 he took one of his hats to Michael Roberts, fashion editor of "Tatler" magazine, and his style editor, Isabella Blow. Blow asked Treacy to make a hat for her to wear for her wedding, and soon after, invited him in 1990, to live with her and her new husband Detmar Blow, in their Belgravia London home, where Treacy worked in their basement. Alexander McQueen, another Blow discovery, would also join Treacy in her home. "The Telegraph" would chronicle
Noel Treacy the Central Development Committee. The following year he became Minister of State at the Department of the Taoiseach. It was in this capacity that Treacy became the State's first Minister for Heritage Affairs. Between 1989 and 1991 he served as Minister of State for Children at the Department of Health, before being appointed Minister of State at the Department of Justice with responsibility for Law Reform. In 1992 Treacy returned to the Department of Finance again before serving at the Departments of the Taoiseach, Finance, Transport, Energy and Communications during the Fianna Fáil–Labour Party government holding special responsibility for Energy.