The exterior of the Hudson’s Detroit tower is officially complete.

Tuesday, workers installed the final glass panel on the 47th floor of the 685-foot-tall building, Dan Gilbert’s Bedrock LLC’s announced. 

The tower at 1208 Woodward Ave. includes a total of 4,677 glass panels on its exterior, ranging from 11 to 16 feet tall and weighing up to 2,200 pounds each.

Earlier this year crews removed the buck hoist, or construction elevator, from the building; clearing the way for workers to finish constructing the facade.

The $1.4 billion development reached its maximum height in April, making it the second-tallest building in the state behind the Renaissance Center. The tower crane was removed from the project last October.  

The 1.5 million-square-foot Hudson’s Detroit project consists of two buildings: a shorter one with 400,000-plus square feet of office space and other uses on the northern portion of the 2.3-acre site, and a 685-foot skyscraper with a planned luxury Edition hotel, for-sale residences and other uses. The two components in the $1.4 billion project are separated by an alley.

Now that the façade of the tower is complete, focus will shift to the interior and its adjacent building, a smaller 12-story building informally known as “The Block” on the northern portion of the 2.3-acre site. In addition to the office space, it also has event, meeting and retail space.

Last week, Detroit-based Ven Johnson Law PLC announced it would be the second office tenant of the block building, leasing 22,000 square feet of the fifth floor of the building. General Motors Co. will be the anchor tenant for the office block development, leasing at least half of the 404,000 square feet of office space across four floors.

The exact day of the opening of the buildings is unknown. GM is expected to begin moving into the office portion of the Hudson’s project at the end of this year while the skyscraper with the luxury hotel and condominiums is anticipated to be complete in 2027.