414 Beacon was designed by architect John H. Sturgis and built in 1887 by L. D. Willcutt, as the home of Mrs. Maria C. (Barnes) Blake, the widow of furniture dealer Charles Blake, and their unmarried son, William Osborne Blake, a real estate investor. Maria Blake is shown as the owner on the original permit applications for the house and a stable at the rear, both dated August 15, 1887, and on the final building inspection reports for the house and stable, both dated December 26, 1888. On June 27, 1888, Maria and William Blake entered into a party wall agreement with Henry H. Fay, owner of 416 Beacon.
Maria Blake and William Blake previously lived at 3 Fairfield. They are shown as the owners of 414 Beacon on the 1888,1908, and 1912 Bromley maps.
By 1910, they had been joined by Mabel I. Beckwith, a companion to Maria Blake.
William Blake married Mabel Beckwith in November of 1912. After their marriage, they lived at 414 Beacon with his mother.
Maria Blake died in May of 1913. William and Mabel Blake continued to make 414 Beacon their home. He is shown as the owner on the 1917 and 1928 Bromley maps. They also maintained summer homes in Franconia, New Hampshire, and Hingham.
William Blake died in November of 1934. Mabel Blake continued to live at 414 Beacon until her death in November of 1940.
Charles B. Barnes et al, trustees, are shown as the owners of 414 Beacon on the 1938 Bromley map and were the assessed owners through 1941.
In 1941, 414 Beacon was the home of William and Mabel Blake’s son-in-law and daughter, Charles Bertram Currier, Jr. and Maria Catherine (Blake) Currier. They previously had lived in Hingham.
By 1941, 414 Beacon was owned by Mrs. Ellen Maria (Ericksson) Molz, a dressmaker, who was the assessed owner from 1942. She previously had lived at 638 Beacon.
In October of 1941, Nils Carlsten, on behalf of Ellen Molz, filed for (and subsequently received) permission to convert the property from a single-family dwelling into a lodging house. Ellen Molz continued to live at 414 Beacon, and to operate it as a lodging house, until about 1959.
By 1959, 414 Beacon was owned by Dr. George J. Colantino, a physician. In October of 1959, he applied for (and subsequently received) permission to convert the property from a lodging house into ten apartments.
The property changed hands and in September of 1979 was purchased by John V. O’Neil. In October of 1979, he filed for (and subsequently received) permission to convert the property from ten apartments into five apartments.
In June of 1980, John O’Neil converted the property into five condominium units, the 414 Beacon Street Condominium.