The school's main building was constructed in 1971 from a modern architectural design by Earl Flansburgh & Associates under the direction of then Headmaster Robert S. Hurlbut Jr.

But its brick wall accents and its preserved oaks and Roxbury puddingstone outcroppings pay homage to historical New England building traditions and topography.

The building features an inner courtyard with a "Space Churn" stainless steel mobile sculpture by George Rickey, donated by a Park parent in 1971.

In 1996, the West Building designed by Graham Gund and Associates, added two full-sized basketball courts, three modern science labs, and four classrooms to the school's facilities.

Families may sign up for two to five afternoons per week; pick-up times are 3:05 p.m., 4:30 p.m. or 6 p.m. Students in Grades 6 – 8 are encouraged to participate in elective sports or after-school drama.

School-wide events include Grandparents' and Special Friends' Day; Yule Festival – a longstanding holiday assembly that acknowledges both the common and varying traditions of the school's diverse community in songs and readings that capture the principles and spirit of Hanukkah, Christmas, and Kwanzaa; and May Day, a special assembly welcoming spring for students in Pre-K through Grade 8.