South Boston developer Tim Pappas says he wants to build a movie studio in South Boston that would cater to the production companies coming to Massachusetts to take advantage of the state’s 25 percent film tax credit.

Pappas, the chief executive officer of Pappas Enterprises, said after a City Council hearing on film production in Boston that he would not release details about the project for another 30 to 60 days. He did confirm that he could build his studio without any tax subsidies, although he acknowledged that its success would depend on the continued existence of the state’s film tax credit.

Pappas is reportedly considering a studio of about 21,000 square feet that could be expanded if it proves successful. It’s different in size and scope from studio proposals in Plymouth and Weymouth. Plymouth Rock Studios, for example, is proposing to build 14 sound stages as well as a 10-acre back lot. The studio business group has won tax concessions from Plymouth and sought but failed to secure an infrastructure investment by the state.

Pappas, who graduated from New York University’s film school, said his company has rented space to movie productions in the past and is familiar with their needs. He said movie producers are flocking to Massachusetts to take advantage of the state’s 25 percent film tax credit but need a dedicated studio to do some of their shooting.

Pappas testified at a hearing called by three Boston city councilors who are pushing for the construction of a film studio in Boston. The three councilors heard testimony from supporters of the film business, including union and film industry representatives.