The Tobin Montessori and Darby Vassall Upper Schools Complex combines multiple public schools, early-childhood programs, and after-school programs together in a single, all-electric campus. The facility opened in September 2025, serving Cambridge families from pre-K through eighth grade, enhancing neighborhood life while backing the city’s climate goals. The Tobin Montessori School (pre-K–5) brings its Montessori philosophy and supportive environment to Darby Vassall Upper School (6–8), where investigation, reflection, and acceptance are part of the daily experience. The campus also includes the city’s Special Start, preschool, and community afterschool programs.
At the middle of the campus, the three-story “Heart of the School” connects all of the programs to a shared space including a cafeteria, gymnasia, auditorium, art, and music rooms, and outdoor play areas. This open common area allows each school to preserve its identity while working as a united community. Curving floor patterns, custom ceiling baffles, and breakout spaces create flow and moments of rest, responding to the movement of different age groups. Expansive views of the east and west courtyards allow daylight into the building, while open sightlines support easy supervision.
A nature-based guidance system organizes the campus into fire, air, water, and earth. Fire, air, and water represent shared areas for all students, while the earth zone differentiates each school as an individual ecosystem: pond-marshland for early childhood programs, wetlands for Tobin Montessori, and uplands for Darby Vassall. Native plants and animals are included on classroom signage, emphasizing identity and creating daily learning moments.
The landscape connects play, exploration, and environmental stewardship across the nine-acre site. Rain gardens, native plantings, and outdoor classrooms connect students with nature, while a 1.25-million-gallon underground stormwater tank and a series of bioswales decrease neighborhood flooding. A rainwater harvesting system collects roof runoff, landscape drainage, and condensate into two cisterns that provide water for the fields and plantings. The campus generates a large amount of clean, renewable electricity each year, supported by a nearly one-megawatt solar array and 76 geothermal wells. A high-performance building exterior also reduces energy use, allowing more efficient operation within the school. Low-emission materials and active air-quality monitoring support wellness and learning for students and educators alike.
The project emphasizes how school design can reflect specific learning philosophies while functioning as a necessary civic infrastructure—managing stormwater, generating renewable energy, and supporting neighborhood life.