Arrowstreet's design for the first ground-up charter school in Massachusetts captures the focused approach to academic success that is the hallmark of the KIPP program. The design prioritizes learning space: the extremely efficient layout supports 850 students in 68,000 square feet. The compact middle and high school classroom wings bookend the central common spaces of the cafeteria, gymnasium, library, lobby, and administrative offices, creating a welcoming landmark in the residential neighborhood. Located on a challenging hilltop site, the school is cost effective, energy efficient, and environmentally sustainable. Classrooms feature daylighting and passive cooling techniques such as large windows, fans, and high, sloped ceilings to reduce operating costs.