Argentinian developer Consultatio has broken ground on Oceana, a $250 million condo project in Key Biscayne, Florida, on the site of the former Sonesta Hotel and Resort. Just southeast of Greater Downtown Miami, Oceana will feature twin 15-story towers with a combined 140 condo units, plus 14 villas on a 10-acre site on Ocean Drive. The development will be located on the last oceanfront site available on Key Biscayne. Units will range from 1,800 square feet to 7,500 square feet. Prices are anticipated to start between $2.5 and $3 million and will be released for purchase this year. oceana-keybiscayne.com.