Talk about star-studded: Richard Meier, Rafael Viñoly, and Kohn Pedersen Fox have all been brought on to design a residential enclave dubbed Waterline Square, a five-acre site between West 59th and 61st streets that was once a dream project for Extell Development. It’s still in the early stages, but we do know that each of the three buildings being developed by GID Development Group will have rentals on their lower halves and condos up top. The development will also have 100,000 square feet of athletic, leisure, and lifestyle amenities, though specific details for those are still TBD. Condos are expected to launch sales sometime this spring.