Campus buildings
Several of Carleton's older buildings have been listed on the National Register of Historic Places (NRHP). Willis Hall, the first building on campus, was constructed from 1869 to 1872. Originally the hall contained the men's dormitory, classrooms, library, and chapel. The building was gutted by fire in 1879, after which it was entirely rebuilt within the existing stone shell. The original front of the building became the rear entrance with the construction of Severance Hall in 1928. As new buildings were constructed, various academic departments cycled through the building. Beginning in 1954, Willis served as the college student union, until it was replaced in 1979 by the Sayles-Hill Student Center, a converted gymnasium. Willis Hall now houses the Economics, Political Science, and Educational Studies offices.
Goodsell Observatory, also on the NRHP, was constructed in 1887 and at the time was the largest observatory in the state of Minnesota. It was named for Charles Goodsell, who donated land for the campus. From the late 19th century to the end of World War II, Goodsell Observatory kept the time for every major railroad west of the Mississippi River, including Northern Pacific Railway, the Great Northern Railway, the Chicago, Milwaukee, and St. Paul Railroad, and the St. Paul, Minneapolis and Manitoba Railway.
Scoville Hall (originally Scoville Memorial Library), completed in 1896, is on the NRHP. Replaced in function by the Gould Library in the 1950s, Scoville was adapted for administrative space.
Four nineteenth-century buildings have been demolished. Gridley Hall (1882) was the main women's dormitory for many years, and was torn down in 1967 for construction of the Music and Drama Center. Williams Hall (1880) was the college's first science building, and was demolished in 1961. Seccombe House (1880) was used for music instruction until 1914, and was located near the site of the current Skinner Chapel. The first observatory (1878) was replaced by Goodsell Observatory in 1887, and the old building was demolished in 1905 to make way for Laird Hall.
Laird Hall was built for science classes in 1905; the classical-revival building now houses the English department and administrative offices, including the president's office. Sayles-Hill was built as the first school gymnasium in 1910, and converted to a student center in 1979.
The eclectic styles of the eight buildings that made up the college in 1914, when Donald Cowling became president, were replaced by a uniform Collegiate Gothic style for the nine buildings erected during his tenure. Skinner Memorial Chapel, completed in 1916, is on the NRHP. Three connected western dorms were built for men: Burton Hall (1915), Davis Hall (1923), and Severance Hall (1928), and two residence halls were built for women: Nourse Hall (1917) and Margaret Evans Hall (1927). Evans Hall was notable for decades for its subdivision into adjacent columns of rooms off stairwells, rather than the more typical arrangement of floors of rooms on hallways. In the fall of 2012, Evans was heavily refurbished to modernize the internal layout and increase overall occupancy. Music Hall was built in 1914, and has housed the Political Science and International Relations department as Hasenstab Hall since 2022. Laird Stadium which stands at the site of the football and track field, was built in 1927. Leighton Hall (1920), originally built for the Chemistry department, now houses academic and administrative offices, including the business office.
The Great Depression and World War II essentially ended the construction boom for two decades. Boliou Hall was built in 1949 in a modernist style, using yellow sandstone as a major element. It was enlarged using a similar style and materials in the early 1990s. The Library was built in 1956 in a similar style, but was expanded in a brick-based style in the mid-1980s. It was renamed the Gould Memorial Library in 1995 for former President Larry Gould. Musser and Myers Halls were built in 1958 as men's and women's dorms respectively, in a bare-bones modernist brick style.
Minoru Yamasaki, architect of the Northwestern National Life Building in Minneapolis and of the original New York World Trade Center, designed five buildings at Carleton in the 1960s. Olin Hall of Science (1961) has a distinctive "radiator" grill work on the exterior. Goodhue (1962) and Watson (1966) Halls were built as dormitories. At seven floors, Watson is the tallest building on campus. The West Gym (1964) and Cowling Gym (1965) were built to replace Sayles-Hill for indoor athletic facilities, originally for men and women respectively.
Carleton's largest athletic facility is the Recreation Center, built in 2000. The 1969 Music and Drama Center's functions were largely taken over by the Weitz Center of Creativity upon its completion in 2012, and it was demolished in 2022. The college's science facilities, anchored in Yamasaki's Olin Hall, were significantly expanded by the construction of Hulings Hall (1995) and Evelyn M. Anderson Hall (2020).
The 2020s also saw the construction of several new townhouse-style accommodations at Lilac Hill, near the Recreation Center, and Union Street, near downtown Northfield.