[2] Ahead of the 1970 general election, the Labour Party, had proposed splitting Glamorgan into two counties, East and West.

However, the Conservative Party prevailed at the election and proceeded to divide the county into three, hoping South Glamorgan would become a Conservative-controlled administration.

[3] South Glamorgan County Council was abolished in 1996 under the Local Government (Wales) Act 1994.

Despite the intentions of the Conservatives who created South Glamorgan, the Labour Party gained a majority of the seats on the council at the first election.

[12] Elections were held every four years:[6] The county council was initially headquartered in a building on Newport Road, Cardiff.