Von Hartel began her practice career while studying, working in various architectural practices during the holidays. On graduation she joined the Melbourne-based firm
Yuncken Freeman. During her time at Yuncken Freeman, she worked on numerous projects in Melbourne, including the
BHP House at
140 William Street. It is now recognised as a work of nationally significant twentieth-century architecture. Von Hartel also tutored architecture part-time at the University of Melbourne and in 1971 she became a full-time tenured lecturer in architecture.
Board memberships and adviserships Throughout her career, von Hartel has also been a part of various government boards, trusts and industry advisory bodies. Roles include Director of the publicly listed company ConnectEast, the concessionaire of the 40 km tollway,
Eastlink (2003–2011); Von Hartel has also been a Design Advisor for many projects including the Sydney International Convention (1), Exhibition and Entertainment Precinct. She has served as Chair of the Sustainability in Buildings Standards Coordination Group of Standards Australia, as inaugural chair of the Victorian Design Advisory Council, and as a Director of the national Tourism and Transport Forum. ==Projects==