The Georgetown Co. opens a 200,000-square-foot of laboratory, research, clinical and biomedical facilities.

The commitment underscores a broader US trend showing that suburban locations are booming targets for multifamily investment.

Major American cities can be divided into five categories based on office demand.

"The surge in sales reaffirms our belief in the region as a critical global gateway for business, travel and tourism, and residential living," said Vanessa Grout, CEO of OKO Real Estate. "I have no doubt that Miami and the South Florida region have longevity and will continue to prosper."