New York-based Chelsea Piers is proposing to develop a field house, ice rinks, bowling and an extreme park that will offer in-line skating, a ropes course and rock climbing. It would total more than 500,000 sf. In particular, the company is proposing 100,000 sf of office, retail and restaurant space, 250,000 sf of open space and 350 parking spaces outside and in the pier 31 shed. Also, in partnership with Western Athletic Clubs, which at one point was planning to submit its own proposal, Chelsea Piers would develop a new health club on the site.

The Mills Corp.'s proposal calls for 250,000 sf of office space, a 100,000-sf YMCA facility, a variety of cafes and restaurants and 120,000 sf of recreational retail--stores that offer products coupled with activities, such as rock-climbing. Also part of their proposal, which could cost $200 million to develop, is 141,000 sf of indoor recreation, 519,000 sf of open space and 434,000 sf of office, retail and restaurant space. The company is also proposing 170 parking spaces in the pier 31 shed.