Group president Bev Butler said it hoped to commission the University of Otago to undertake the survey, which was expected to cost up to $4000.
Ms Butler planned to consult pro-stadium group Our Stadium to see if it would help pay for the survey.
Growing concerns about the escalating costs and general feasibility of the Awatea St stadium prompted the formation of the Stop the Stadium group, numbering 25, which met for the first time on Sunday.
Ms Butler said the organisation was formed after a group of people started emailing each other with concerns about stadium funding.
"We do not believe the massive expense, largely funded by the public, is in the best interests of the city.
We do not see the public receiving all the information that they should to assess the risks involved.
We do not agree a majority of Otago citizens are really in favour of the proposal."
Although the Dunedin City and Otago Regional Councils had pledged conditional funding for the stadium, Ms Butler said there were still plenty of "exit points" where councils could withdraw support.
"There have already been several exit points which they have ignored.
"There is no guarantee the $188 million for the stadium won't be more than that.
That's our main concern - there are no safeguards in place."
Other priorities of Stop the Stadium were to ensure that all the facts were available to Otago citizens, that informed debate continued and to increase the group's membership and raise funds for the necessary work, Ms Butler said.
