And a house at 664 Charlotte St. between Second and Third avenues is also slated to come down, according to documents filed with the Michigan Department of Environmental Quality.

The DEQ documents, called "notifications of intent to renovate/demolish," say demolition is expected to begin June 29 and end Aug. 31. All four buildings are owned by Olympia, the documents say.

According to CoStar Group Inc., a Washington, D.C.-based real estate information service:

the Hotel Ansonia was built in 1914 and has almost 17,000 square feet.

the Atlanta Apartments has 28 units and is about 28,000 square feet built in 1915

the building at 427 Henry St. was built in 1900 and has about 8,200 square feet

The house at 664 Charlotte St. between Second and Third avenues is 70 years old, according to a DEQ document.

"These long-vacant buildings have been considered by numerous residential developers and found to lack viable redevelopment potential," Ed Saenz, manager of communications and media for Olympia, said in a statement.

"Going forward, this area is envisioned for the type of high-density, mixed-use development that will contribute to Detroit's globally recognized comeback and create additional construction and construction-related jobs."

The Hotel Ansonia and Atlanta Apartments are not in a local historic district, although Detroit City Council member Raquel Castaneda-Lopez on Monday formally requested that the buildings be included on an interim basis in the Cass Avenue Local Historic District.