[citation needed] His design for an environmentally adapted Mallee Hospital was lauded by critic Robin Boyd as the beginning of a new Australian architecture.

[citation needed] McIntyre formed a partnership with architects John and Phyllis Murphy and Kevin Borland and in collaboration with engineering consultant Bill Irwin, they designed the Melbourne Olympic Swimming pool in 1952.

He wrote the 1973 Strategy Plan for the City of Melbourne, which limited high rise development to its eastern and western shoulders.

Key projects include McIntyre River Residence, Parliament Station, The Jam Factory Complex in South Yarra, Westfield Knox in Wantirna South and the creation of the Dinner Plain Alpine Village near Mount Hotham, Victoria.

[4] McIntrye's titles are: AO, DArch, BArch, DipArch, DipTRP, LFRAIA, FRAPI, FAIA, Emeritus Professor of Architecture (University of Melbourne).