In 2003, Heymann was awarded the 17th annual Friar Centennial Teaching Fellowship (FCTF). Its honorarium is the largest for undergraduate teaching excellence at The University of Texas. Other teaching awards he has received include The Texas Exes Award for Teaching Excellence, the University of Texas Regents Outstanding Teaching Award, the 2002 Award for Outstanding Educational Contributions from the Texas Society of Architects, and inclusion in Design Intelligence's 25 Most Admired Educators in 2017. Heymann is a University of Texas Academy of Distinguished Teaching Professor, and an Association of Collegiate Schools of Architecture Distinguished Professor.