Lucien Lagrange & Associates or Lucien Lagrange Architects is an architecture firm founded by Lucien Lagrange in 1985. The company filed for Chapter 11 bankruptcy in 2010. The company is located at 605 North Michigan Avenue in Chicago, Illinois, and it has approximately sixty employees. The company is owned 100% by Lucien Lagrange. Lagrange is a French-born architect who came to Chicago in 1978 after studying at McGill University and who rose to prominence while working for Skidmore, Owings & Merrill after having been a 1950s high school dropout.
Among the 21st century projects that the firm has completed are The Pinnacle and Park Tower. The firm was responsible for the renovation of the Chicago Landmark Carbide & Carbon Building that had originally been designed by Daniel Burnham's sons to host the originators of the Eveready Battery. The firm has renovated Chicago's Union Station and is currently continuing its series of proposals to expand above the Chicago Landmark. Currently, it pursuing the 26-story Union Station Tower, which has been in various planning stages since 2002. In the past twenty-five years it has been involved in attempted Union Station expansions such as the 55-story One Union Plaza (1989) and the Union Station Towers (1986).