Half of the west side of the 800 block of 25th Street is excluded from the Historic District. The site is currently occupied by the Plaza co-op. Designed by Edmund W. Dreyfuss (Edmund W.) Associates, it was built as an apartment building in 1974, but converted to a co-op in 1975.

From at least the 1920s to the 1950s, it was the site of the African American Mt. Lebanon Baptist Church (814-816 25th St.). The property was sold in 1960 and the church and other buildings demolished. The Site remained a parking lot until the Plaza was built.