Molnar was an architect, cartoonist, watercolourist, illustrator and architecture lecturer at Sydney University and the University of NSW. His lecturers were highly praised by students. While his architecture appears undocumented, he is best known for his cartoons for Sydney's daily newspapers, frequently satirical and often directed at his architectural profession.
The Cross Art Projects, 8 Llankelly Place, Kings Cross, Sydney, 2011, Australia
Molnar delighted in the vernacular architecture and streetscape of Kings Cross. As deregulated height limits and a property and speculative building boom swept aside post-war dreams for a Great Society, Molnar disputed jargon and pointed out the half-truths and myths peddled about the benefits of consolidated cities and towers, freeways and remote suburban developments.