The Dan Gilbert empire keeps growing and growing.

The latest: Gilbert's Rock Ventures purchased two buildings and a 4,000-square-foot vacant lot for a new development in Detroit’s Capitol Park last month, Kirk Pinho of Crain's Detroit Business reports.

Rock Venture spokeswoman Laura Biehl told Crain's that the exact plans for the buildings have yet to be developed.

Pinho writes:

The 42,000-square-foot building at 119 State St. at the corner of Shelby Street was listed for $3 million, while the 10,000-square-foot Church Building at 45 W. Grand River Ave. at the corner of Griswold Street was listed for $1.5 million, according to Washington, D.C.-based real estate information service CoStar Group Inc.

Read more: Crain's Detroit Business