A dewatering permit application has been submitted to Miami-Dade for the 888 Brickell supertall site.
The application was received by the county on January 22.
Plans submitted with the application show a deep soil mix wall is planned for foundation work.
A 90-story, 1,049-foot Dolce&Gabbana tower is planned on the property.
It will include 259 residential units, 102,805 square feet of commercial uses, and 273 parking spaces.
Miami-Dade issued a total demolition permit last month for an existing 7-story office building on the site.