Education Minister Leighton Andrews AM said that action would be taken against local authorities who did not respond to parents' demand for more Welsh medium schools.
Mr Andrews spoke during the short debate on Welsh medium education in Swansea on 29 September 2010.
Leading the debate, Plaid Cymru's AM for South West Wales, Dai Lloyd, said that poor and absent planning of more Welsh schools was a crude attempt to stifle growth of the Welsh language.
Mr Lloyd said that between 28-38% of parents in Swansea wanted to access Welsh medium schools, but that provision was as low as 12%.
Mr Andrews said that the local council had assessed the demand for more schools and are currently considering a number of sites.
The minister said that an equality strategy was in place and that guidelines would be published in due course to prompt local authorities to respond to supply and demand, warning that action would be taken if authorities did not adhere to the guidelines.
There are currently nine Welsh medium primaries and two Welsh medium high schools in the Swansea area.