The redevelopment of the Hotel Eddystone will not meet a deadline imposed as part of an agreement that allowed the Ilitch family to blow up a different vacant hotel near Little Caesars Arena three years ago.

Now Mayor Mike Duggan's administration is keeping its options on the table, including legal action, to compel Olympia Development of Michigan to redevelop the 13-story tower that overlooks the sparkling new arena.

In addition, the developer that had been slated to bring more than three-quarters of nearly 700 residential units to the downtown market is no longer working on those efforts in The District Detroit, the planned 45- to 50-block swath of largely Ilitch-owned property north of downtown anchored by the new arena for the Detroit Red Wings and Detroit Pistons.

However, the family's Olympia Development of Michigan says it is still moving forward with the Eddystone redevelopment, announced last year as a 96-unit project that was part of 686 units planned across four historic rehabilitations and two new-builds. The company began cleaning the building a year ago.

Olympia said in a statement that it remains "committed to restoring and redeveloping the former Eddystone hotel into new residential housing, 20 percent of which will be designated as affordable units."

"Planning, partnership and financing work continues, as our previously announced developer is no longer participating on the project. Restoration is expected to begin next month, with the installation of new, historically accurate windows."

But Arthur Jemison, Duggan's chief of services and infrastructure who moved into that job after several years working on affordable housing, said the city is working with Olympia to compel the company to bring the building up to code, which includes installing the windows.

A 2015 agreement with the Downtown Development Authority says the company has one year from the issuance of a temporary or permanent certificate of occupancy for the new arena to redevelop the 13-story Eddystone building that opened in 1924. The temporary certificate was issued Sept. 12, 2017, said John Roach, director of media relations for Duggan. The Eddystone was spared from demolition in a compromise agreement with the city that allowed Olympia to implode the former Hotel Park Avenue nearby in 2015.

Legal action is possible to enforce the deadline, Jemison said, but is just one of the options the city has.

Detroit-based American Community Developers Inc. was slated to redevelop the Eddystone. In addition, ACD was to build two new residential buildings and redevelop the Eddystone at 110 Sproat St., the Hotel Fort Wayne at 408 Temple St. and the Alhambra Apartments at 100 Temple St.

Now it's not known what developer or developers are working on the redevelopment of the Hotel Eddystone, the Hotel Fort Wayne and the Alhambra Apartments. Olympia did not respond to follow-up questions.

Earlier this year, Olympia revealed that it was no longer planning on constructing the two new buildings for residential units. Instead, it shifted plans to devote those projects for office space. Bagley Development Group LLC, which is led by longtime Detroit developer Emmett Moten Jr., is leading the redevelopment of the United Artists Theatre building at 150 Bagley St. Jemison said progress is being made on that project.

"ACD is no longer involved in any projects in the District Detroit," said Mike Essian, vice president of ACD, said in a statement. "We currently have four other affordable housing developments under construction in the city and we recently announced our newest mixed-income development in Brush Park with the mayor's office. We remain committed to developing high-quality housing within the city — both market-rate and affordable."

In addition, Detroit-based Ventra LLC, which had been serving as the multifamily consultant to Olympia on its projects, is no longer working with the company as of earlier this year. George Jackson, the former head of the Detroit Economic Growth Corp. who left that organization to start Ventra, declined comment.

Projects like the Wayne State University Mike Ilitch School of Business and the Little Caesars Global Resources Center, both on Woodward Avenue south of the arena, are nearing completion. A Detroit Medical Center sports medicine facility was announced two months ago, to be flanked by the business school and the arena.