In 1993, Hervé Descottes co-founded the lighting design firm L’Observatoire International in New York City after eight years of design practice in Paris, France. Descottes personally creates the lighting concepts for all projects designed by L’Observatoire, and oversees project development through project completion.

Mr. Descottes has been recognized numerous times by the lighting design and architectural community. He has received awards from the International Association of Lighting Designers, the Illuminating Engineering Society and the New York City Illuminating Engineering Society, the American Institute of Architects, the American Society of Landscape Architects, D&ADAD, the Municipal Art Society of New York City, and the GE Corporation. In 2008, Mr. Descottes was named Knight of the Order of Arts and Letters by the French Minister of Culture.

In 2020, Hervé Descottes has received the Interior Design's Best of Year Award for Best Lighting Designer.