Grégoire Zündel was born in France, and holds Swiss and American citizenships. He studied architecture at ENSA, architectural school in Strasbourg and graduated in 1996. He was a teacher at ENSA for two years, in 2004 and 2005.
From 1997 to 2000, they lived and worked in Hong Kong.
In 2001 they founded AZC-Atelier Zündel Cristea. The office is located in Paris.
Through competitions and direct commissions, the office has worked on over a hundred projects of varied scales and uses. Most of their built projects are intended for a wide audience; sports facilities, lecture halls, office buildings and residential, some of which very specific, for vulnerable populations. AZC currently works on nine projects of metro stations, including four in Paris and four in Rennes, under construction and a new station in Lyon, on study.