Halvorson Design has provided extensive design and planning services for the Harvard Business School campus. These include an historical study of the original Olmsted Brothers design for the campus in 1927 and design of a series of new and renovated spaces, following the Olmsted principles, which involve approximately half of the campus. Implemented projects include rejuvenated courtyards, universal access improvements and landscapes associated with new campus buildings: in all more than a dozen projects with five different architects. A typical project involved the iconic Baker Quadrangle, site of graduations and other major events, which suffered from visual and noise intrusion from an adjacent riverside arterial highway. To ameliorate these problems, Halvorson Design developed a sensitively scaled attenuation wall that fits harmoniously into the historic campus environment. The firm also contributed the landscape components of a draft master plan for the campus prepared by Beyer Blinder Belle.