The DP&L Steam Plant is an historic Dayton treasure. The Steam Plant was built as a power-generating plant by Dayton Power & Light in 1907 with additions in 1917 and 1948. It served as a backup steam heating system for downtown Dayton and was used until the plant closed in the mid-1980s. It has been carefully renovated preserving the unique architectural features such as high ceilings, exposed beams, brick walls and iconic floor to ceiling windows.