[5] From the 1950s to 1988, Stretton made his career in the construction as designer and project manager from Australia and New Zealand to the United States.
"[4] In 1988, Stretton joined the Faculty of Design, Architecture and Building at the University of Technology, Sydney (UTS), where he later became appointed Adjunct Professor of Project Management.
After his retirement in 2006 he joined the University of Management and Technology (United States) faculty.
[8] Later in the 1990s he continued these standardization efforts at the Australian Institute of Project Management (AIPM).
[4] In 1996, Stretton was elected Life Fellow of the Australian Institute of Project Management (AIPM), and in 2015 he was awarded the honorary doctorate in strategy, programme and project management from the French business school ESC Lille.