This Greek Revival style house was built in 1835 for Joseph Greeley II and his wife, Charlotte Pollard Greeley. He acquired the lot from Samuel R. Baker for $450 on March 28, 1835, after Baker purchased it from Nashua Manufacturing Co. in 1834. Greeley, known as "Black Joe" because of his black beard and dark complexion, was active in manufacturing in Concord and was not related to any of the other Greeleys in Nashua. In 1886, Charlotte Pollard Greeley sold the 12 Front Street home to Mary E. Colburn, who already owned 14 Front Street. The property was the home of several families before Grace Fellowship Church bought it in 1995. The structure features double-storied fluted columns and an iron balcony. One unexplained mystery is the house's double granite foundation. Some conjecture it was used for a root cellar, a coal bin, or even a stop on the Underground Railroad. During the flood of 1936, the house was inundated with five feet of water. The cost of repairing damage from inches of mud and debris along Front Street was $5,244 and was cleaned using a fire hose.