BCD was founded in 1946 by a group of local parents who wanted to give their children a certain style of education which they felt was not available in the area.

The school's main building, housing the pre-k through sixth grade, was moved to the Starks' former family home on Walker Street in Lenox.

However, in June 2007 at the end of the academic year, BCD2s was closed, although the ninth grade class option was kept and added back to the BCD student body.

The 27-acre natural campus includes several regulation playing fields, a pond used for kayaking and ice skating and new wings have been added to the original historic buildings.

The campus grounds date back to the 1890s and is listed on the National Register of Historic Places as it was once a working farm for the Anson Phelps Stokes' Shadowbrook estate.

Mr. Stokes built the 1,000 acre estate, complete with a mansion that encompassed 100 rooms and stretched 410 feet, as a "summer cottage" in 1892–1896.

Students begin to learn about the science process by engaging in their physical world and in focused activities such as caring for animals and following the weather.

Middle School, consisting of Grades 4,5, and 6, is where students study the academic classes as well as arts, foreign language, and technology.

Upper School consists of 7th and 8th graders who demonstrate increasing levels of achievement in academics, the arts and athletics.

Berkshire Country Day School offers varied and excellent extra-curricular opportunities - Band, Ceramics, Chorus, Creative Writing, Drama, Newspaper, Photography, Yearbook, Competitive Sports including Soccer, Lacrosse, Gymnastics & more.