The St. Helena Montessori Adolescent Program’s Middle School was launched in the fall of 2008, the culmination of three years of preparatory work.  The need for a working farm at this level necessitated the search for a campus outside of town.  The property was secured in XXXX and work began on design, entitlement, and construction of the campus.  The AP began farming on the property and commuted.

In 2020, the high school started as the school recognized the need to complete the Third Plane and provide the community with an educational approach that was consistent from 18 months through 18 years and see young people off to college fully-formed in the Montessori pedagogy.