Renovation and addition of the historical Building E52, home to MIT's Department of Economics and administrative offices for the Sloan School of Management. This 155,000 SF project involved extensive programming and space planning effort, including new communicating stairs that provide clear circulation routes throughout the building and a kitchen/bakery program to support occupants. A new glass-enclosed rooftop conference center features a view of the Boston skyline and accommodates 700 people, featuring technology, acoustics, moveable partitions, and furniture allowing for maximum flexibility. Mechanical system highlights include an active chilled beam system served by a dedicated outdoor air unit with enthalpy wheel heat recovery technology. Densely occupied spaces like the 7th floor conference center and first floor classroom utilize a displacement ventilation distribution strategy that all helped to contribute to the building's LEED Platinum Certification.