The redevelopment of Boston’s waterfront has been a start-stop affair in recent years. Now, another grand project is planned for the area, and this one is particularly ambitious.

In May, developer Gale International and partner Morgan Stanley filed a proposal for Seaport Square, a 23-acre mixed-used development featuring 19 buildings designed by the likes of Studio Daniel Libeskind, HOK, and CBT Architects. The 6.5-million-square-foot, $3.5 billion project—one of the largest development projects in Boston’s history—amounts to an attempt to create an instant urban village, complete with housing, offices, hotels, shops, parks, and cultural venues. The plan also includes two schools and a library, and some 6,500 parking spaces located mostly below ground.