Born in Scotland in 1937, Tyndall received his M.L.A. from the University of Pennsylvania in 1963 and his Doctor of Arts in Architecture from Duncan of Jordanstone College of Art. He joined the Office of Dan Kiley in 1963 and was a partner in the firm Kiley Tyndall Walker from 1971 to 1979. He started his own firm in 1981, practicing primarily from offices in Cambridge, Massachusetts and Washington, D.C. His work includes a master plan for the Goddard Space Flight Center in Maryland, educational housing in Ithaca, New York, and the Botanic Garden of the National Museum of Natural Science in Taiwan. Tyndall has held teaching assignments at Harvard, Cornell, and the University of Pennsylvania.