As the property owner, El-Ad Florida, based in Sunrise, applied for the permits with the City of Jacksonville Building Inspection Division.
The applications do not list a contractor.
Separate applications show tenant construction on nine floors, 7-9 and 20-25, and cosmetic renovations to the elevator lobby and restrooms on those floors and cosmetic renovations to the second-floor restroom.
The building, at 301 W. Bay St., is in the central civic core.
Rolland, DelValle & Bradley is listed as the project architect for the nine floors of tenant improvements. Gresham, Smith & Partners is listed as the architect-engineer for the cosmetic renovations.
Jacksonville-based EverBank announced last week it will relocate 1,500 employees from the Southside into nine floors, comprising about 270,000 square feet of space, in the Downtown tower.
EverBank Chairman and CEO Rob Clements said the transition will happen in phases, starting in May.
The signage of the building, known as AT&T Tower 301, will be changed about the same time, he said.
EverBank is based along Riverside Avenue near Downtown.
The City and state agreed to offer EverBank$5.15 million in incentives to move jobs from the suburbs Downtown and create more jobs.
El-Ad Florida LLC applied for permits Wednesday to build out space for EverBank at the newly named EverBank Center at a project cost of $8.5 million.