The Dallas Museum of Art (DMA) is planning a major expansion that will add flexible gallery spaces, reorganized entrances and circulation, and a reapportioned interior. But first all that needs to be designed. So the DMA has launched a “Reimagining the Dallas Museum of Art International Design Competition.”

The museum’s current building, a limestone-clad Modernist structure designed by Edward Larrabee Barnes, opened in 1984. But the DMA has long outgrown it, with thousands of works unable to be seen because there’s not enough gallery space to mount them. The Museum’s Dr. Agustín Arteaga explains, “Today we’re no longer able to accommodate the exponential growth of our collections and are forced to keep masterworks hidden from the public due to limitations on space,” Arteaga added. “It’s time for our building to evolve to meet the current and future needs of our diverse and expansive collections and communities.”

The design competition has a deadline for entry of March 15. The expansion’s estimated budget will range from $150 to $175 million.