AJC Architects

AJC
Practice information
Founders
  • John Allen (1952-2022)
  • Russell Jack (1956)
  • Keith Cottier AM (1964-2008)
Founded14 June 1952 (1952-06-14)
Significant works and honors
Awards

AJC Architects, formerly Allen Jack+Cottier and before that John Allen and Russell C. Jack, is an urban design, architecture, and interior design practice in Sydney, Australia. It was founded in 1952 by John Allen and Russell C. Jack, who were joined by Keith Cottier in 1964. As of January 2025, the practice is headed by director and CEO Michael Heenan.