An anomaly among the Georgian Revival buildings of Harvard, Andover Hall represents an English Gothic style, favored by Boston architects since the 1890s, which remained popular through the early decades of the twentieth century, especially in suburban church projects. Characteristic features of Andover Hall are its Perpendicular Gothic tower, steeply pitched roof, wall buttresses, and lancet windows with tracery. The building was constructed by the independent Andover Theological Seminary, who sold it to Harvard when the school relocated to Newton.