The first challenge to the Cape Qualified Franchise came with the Women's Enfranchisement Act, 1930 and the Franchise Laws Amendment Act, 1931, which extended the vote to women and removed property qualifications for the white population only – non-white voters remained subject to the earlier restrictions.
[1] When South Peninsula was first created, it almost completely surrounded Cape Town, stretching from Camps Bay in the west to Athlone in the north and the Eerste River in the east.
[2] Suburban growth gradually cut the seat down in size, however, and after the creation of Cape Flats in 1929, it was more or less contained to the South Peninsula itself.
In 1929, future cabinet minister Sidney Frank Waterson won his first election to the House of Assembly from the seat, and represented it until he moved to Claremont in 1943.
By this point, South Peninsula was a safe seat for the United Party, whose candidates would win it in every election until its disappearance in 1958.