Benjamin F. Clough House

The building at 202–204 Charles Street in Waltham, Massachusetts is a well-preserved example of multi-unit residential housing built in the city in the early decades of the 20th century. It was built in 1913, and was listed on the National Register of Historic Places in 1989.

The United States Watch Company is a historic factory complex at 260 Charles Street in Waltham, Massachusetts. Built in 1886 and enlarged in 1901, it represents one of the most successful spinoffs of the American Waltham Watch Company, Waltham's dominant watchmaker of the late 19th century. When the complex was listed on the National Register of Historic Places in 1989, it was the last watch factory left in the city.

The Company F State Armory, also known as the Waltham State Armory, is a historic armory building at Curtis and Sharon Streets in Waltham, Massachusetts. Built in 1908, it is locally notable for its Georgian Revival architecture, and as the city's only armory building. It was among the last of the state's armories to be built to individualized architectural design. The building was listed on the National Register of Historic Places in 1989. The building is vacant.

The Charles Street Workers' Housing Historic District is a residential historic district at 128–144 Charles Street in Waltham, Massachusetts. It consists of four houses on a single city block, all of which are well-preserved vernacular worker houses built in 1865. They are representative of the city's growth of the period, and typify housing built for the city's laborers. The district was listed on the National Register of Historic Places in 1989.

The Francis Buttrick House is a historic house at 44 Harvard Street in Waltham, Massachusetts. Built before 1852, it is one of a small number of temple-front Greek Revival houses in the city. It was listed on the National Register of Historic Places in 1989.

The Gale–Banks House is a historic house at 935 Main Street in Waltham, Massachusetts. This farmhouse was built c. 1798, and is one of the finest Federal style houses in the city. It is also significant for its association with Waltham native son, Governor of Massachusetts, and general of the American Civil War, Nathaniel Prentice Banks, who purchased it in 1855 and made it is home until his death in 1894. The house was listed on the National Register of Historic Places in 1990.

The Prospect House is a historic building located at 11 Hammond Street in Waltham, Massachusetts. Built in 1839, this temple-front Greek Revival structure was originally a hotel and tavern, and is one of only a few surviving 19th century hotel buildings in the city. Now an apartment house, the building has four two-story fluted Doric columns supporting a pedimented gable, with a second-story porch behind the columns. Early pedimented dormers have been linked together in later alterations.The building was listed on the National Register of Historic Places in 1989.

The Waltham Water Works Shop is a historic municipal public works building at 92 Felton Street in Waltham, Massachusetts, United States. The two story brick building was built in 1894, as part of a major municipal construction campaign. It is distinctive as a well-preserved yet utilitarian municipal structure, whose construction embodies some significant advances for the period. Its basement level, which originally housed a workshop, had a cement floor and was illuminated by both gas and electrical fixtures, all then somewhat advanced features. The main floor, which housed offices, space for carriages, and stalls for six horses, was constructed of concrete and iron. The upper floor housed storage as well as hay and fodder for the stabled horses. By the 1980s the building had been readapted by the city for use as a dog pound.The building was listed on the National Register of Historic Places in 1989.

The U.S. Post Office—Waltham Main is a historic post office building in Waltham, Massachusetts. The T-shaped brick and stone building was built in 1935, as part of a Works Progress Administration project during the Great Depression. The Classical Revival building was designed by the Boston firm of Wadsworth, Hubbard & Smith. The interior is of a layout typical of other period post offices, with a central lobby area flanked by the postmaster's office on the left and a work area on the right. This public area is faced in a variety of stone products, predominantly marble from a variety of sources.The building was listed on the National Register of Historic Places in 1986.

The American Waltham Watch Company Historic District encompasses the former factory of the Waltham Watch Company, the leading American watch manufacturer of the 19th century and the city's largest employer. Located on Crescent Street and the banks of the Charles River, the surviving elements of its manufacturing facility date from the 1870s to the 1910s, and include particularly fine industrial Romanesque architecture. The buildings have been converted to a variety of commercial, industrial and residential uses since they ceased being used for watchmaking in the 1950s. The complex was listed on the National Register of Historic Places in 1989.

The Henry C. Hall House is a historic house at 107 Crescent Street in Waltham, Massachusetts. This 2+1⁄2-story wood-frame house was built c. 1872–74 by Henry Hall, co-owner of a local pharmacy. The house has a mansard roof characteristic of the Second Empire style, with a 3+1⁄2-story tower topped by a truncated hip roof. The cornice of the tower and of the main house are both studded with brackets, as are the skirted roof lines above the building's projecting bays.The house was listed on the National Register of Historic Places in 1989.

The Nathan Warren House was a historic house at 50 Weston Street in Waltham, Massachusetts. Built c. 1889-90 the 2+1⁄2-story house was one of the city's finest Queen Anne residences, with a turret and porte cochere, as well as a variety of decorated projecting sections. The house was built by Nathan Warren, who wrote a history of Waltham, was active in local and state politics, and who was a member of an exploratory expedition to the Yellowstone area in 1873.The house was listed on the National Register of Historic Places in 1990. It was demolished in 2006.