Demolition at One Bayfront Plaza is tentatively expected to get underway in early October, according to a memo posted to social media by @AllThings305.
The memo was issued by the manager of an office building across the street.
The first phase, which includes demolition of a garage and a portion of the structure closest to the street, is expected to last through December, with the second phase beginning in January.
One lane will be blocked on Biscayne Boulevard and SE 1st Street during the first phase, between 8PM and 2 AM.
A demolition permit for the 19-story building was approved in June, but is in revision, Building Department records show.
Miami has stringent demolition requirements and will monitor the demolition process throughout, the memo states.
The owner of the property is planning a landmark 1,049-foot supertall tower on the site, with offices, a convention hotel, residences, and a shopping mall.