308 Commonwealth was designed by Samuel D. Kelley and built ca. 1889 by Thomas R. White, builder, as a twelve unit apartment house, The Imperial. It was listed as 308-310 Commonwealth in the Blue Books through the 1930s.
George W. Nason is shown as the owner on the 1890 Bromley map.
By the mid-1890s, it was owned by the Webster family. David Locke Webster et al are shown as the owners on the 1895 and 1898 Bromley maps. He was a leather and morocco dealer and lived at 334 Beacon. His niece and her husband, Mary (Webster) Dwight and architect Henry Hyde Dwight, lived next door to The Imperial at 306 Commonwealth.
Frances W. Eldredge et al are shown as the owners of 308-310 Commonwealth on the 1908, 1917, and 1928 Bromley maps, and Francis W. Eldredge is shown as the owner on the 1938 Bromley map.
The property changed hands and in March of 1977 was purchased by Kevin O’Reilly, trustee of the 308 Commonwealth Avenue Trust. In November of 1977, he converted the property into thirteen condominium units, the 308 Commonwealth Condominium.