AJC Architects

AJC
AJC
Practice information
Founders	John Allen (1952—1993); Russell Jack (1956—1976); Keith Cottier AM (1964—2008);
Founded	14 June 1952
Location	Sydney, Australia
Significant works and honors
Buildings	Jack House, Rothbury Estate Winery
Projects	Moore Park Gardens, 2000
Awards	RAIA Sir John Sulman Medal (1958); RAIA Wilkinson Award (1963); Blacket Prize (1966, 1970, 1986, 2008); RAIA Canberra Medallion (1965); World Architecture Festival: Winner in Sport Category (2009); RAIA New South Wales Enduring Architecture Award (2025); Keith Cottier: RAIA Gold Medal (2001);
Website
	https://architectsajc.com/

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.