This block of Green Street features representative examples of single- and multifamily frame housing constructed throughout Charlestown and other urban New England areas in the middle two quarters of the nineteenth century. It also nicely illustrates typical Charlestown alterations later in the century with the raising of the top story. Built mostly as speculative development on former pastureland that was subdivided in the late 1830s, the earlier examples are mostly two-story duplexes (both side-by-side and back-to-back) and small rows of attached town houses in the Greek Revival style. Later examples are three-story, flat-roofed attached town houses with Italianate and classical ornament, many of which were later subdivided into flats.