Senior councillors have agreed to allow a procurement plan to be drawn up for a multi-purpose arena in Cardiff, to include a convention centre, indoor arena and exhibition space.
Cardiff council believes that the Welsh capital needs both a multi-purpose indoor arena and an international convention centre. The convention centre would hold up to 1,500 delegates as part of a 12,000-seat indoor arena.
Russell Goodway, cabinet member for finance and economic development, commented: "There can be no denying the need for a facility of this scale in Cardiff and this has been something this administration has been progressing since we took office in 2012.
"The lack of a convention centre in Cardiff is something we need to rectify as the proposed facility will have a major impact on our ability to grow the local economy, increasing our capacity to attract global conferences and other large events."
The Celtic Manor resort near Newport has also proposed plans for a convention centre, which would be located next to the hotel and split across three levels.