This property is at the southern end of the Brickell highrise district and was the first to develop highrises along the waterfront in the 1970's. I'm not sure what the height limits are here but the tallest highrise built here was the Santa Maria :
http://legacy.skyscrapercenter.com/c...10002/Mi05.jpg
which was built in 1997 & stands at 520 feet | 158.5 m and is 51 stories tall. I would imagine at the very least this will rise over 500 ft. if not higher considering it's bayfront location. I'm expecting multi million dollar penthouses with spectacular views of Key Biscayne, the bay & the Atlantic.