Patrick Troy has worked as an engineer in the private sector and in State and local government, as a planner in NSW and as senior administrator in the Commonwealth. He has conducted reviews of planning and planning education, housing and urban development. He served on State and Federal Government agencies including the South Australian Land Commission, was Deputy Secretary of the Department of Urban and Regional Development and consultant to UNESCO on urban development and administration and to OECD on urban development and environmental issues. From 1966-2000 he held various positions including professor and head of Urban Research Program, RSSS at the ANU. From 2000-2001 he was a Professor in the ANU Centre for Resource and Environmental Studies. He has also held numerous public appointments including: Deputy Chairman, Australian Housing Corporation, 1984-1992; Member, Australian Housing Council, 1995; Member, Board of Inquiry into the Administration of Leasehold in the Australian Capital Territory, 2003-2006; Member ACT Planning and Land Council.
He is currently an Adjunct Professor for the Urban Research Program at Griffith University and a Visiting Professor for the City Futures Research Centre, Faculty of Built Environment, at the University of New South Wales.