Constructed in 1915-1916 in a residential neighborhood in Auburn, Maine, the Webster Grammar School was listed in the National Register of Historic Places at the local level of significance as one of the first junior high school to be organized and put into operation in New England. Influenced by a national movement in educational philosophy in the 1910s-20s, the form and use of the school reflects the tumult of a city grappling with rapid growth in student enrollment and adjustments to the quality and structure of public education. Two years after opening, the school was officially made the junior high school and functioned as such until 1981 when it became an intermediate school for fourth, fifth, and sixth grades. The period of significance from 1915-1918 includes the date of construction until the school became the official junior high. Webster Grammar School is also significant architecturally for embodying distinctive characteristics of an educational institution that exemplify the transition occurring in the curriculum and structure of public education at the time. Assuming a traditional school form on the exterior and containing a classroom floor plan that was not innovative, the incorporation of manual arts training with gender-divided spaces in the basement level was a unique resolution to integrating new subjects while following the earlier structure of school organization. The Webster Grammar School is also a significant example of early 20th century Colonial Revival school design by well known Maine architect Harry S. Coombs.