Van den Heever started practising as an advocate at the Bloemfontein
Bar in 1952 and in 1968 she became a
senior advocate. In 1969, she was appointed a judge in the
Northern Cape Division, thus becoming the first female judge in South Africa. In 1979, she began to serve on the Bench of the
Cape Provincial Division and from time to time during 1982 to 1985, she was part of the
Bophuthatswana Court of Appeal. In 1991, she became the first female judge to be appointed permanently to the
appellate division of the South African Supreme Court in Bloemfontein where she served until, she retired. After retiring at age 70, she agreed to some work in the Cape Provincial Division and served for a number of years on the Appeal Benches of
Lesotho and
Swaziland. ==Other interests==