S c h o o l s      Magen David Yeshivah   Address: 21-34 McDonald Avenue, Brooklyn, NY Owner: Magen David Yeshivah Architect: Gruzen Samton Architects Features: 200,000 square-foot, 7-Story K-8 private school featuring gym, dining facilities, classrooms, auditorium and worship spaces. HVAC systems include gas-fired, rooftop equipment, split system, air-cooled unit ventilators and hot-water baseboard.