MIAMI-Portman-CMC and South Beach ACE presented their plans to local residents to redevelop the Miami Beach Convention Center on Wednesday.

Portman CMC, which is lead by Portman Holdings, proposed several plans for the 52-acre site, including one that would create a diagonal plaza at the corner of the current convention center property that would feature a string of parks that connect to the Miami Beach Botanical Garden and SoundScape Park, according to the Miami Herald.

South Beach ACE, led by Tishman Hotel and Realty, proposes an underground parking area to solve the issue of idling trucks and buses that have caused complaints by local residents. Above the parking facility, Tishman proposes greenspace with views of the Collins Canal. Tishman’s proposal also looks to preserve the Jackie Gleason Theater.

The two teams are competing for the project that could cost as high as $1 billion to develop. See story in the Miami Herald.