International School of Boston (ISB), a private PreK–12 school in Cambridge, MA, is planning a campus expansion to support long-term enrollment growth. Redgate is leading a comprehensive real estate strategy and master planning effort to assess the highest and best use of existing assets, evaluate opportunities for property acquisition, optimize and consolidate space across campus, and align programmatic needs with operational goals. The plan includes additional classrooms, administrative space, a new gymnasium, and future STEAM and performing arts facilities. Redgate is managing architectural inputs, construction pricing, stakeholder engagement, and zoning and regulatory analysis, while also developing both near-term occupancy strategies for newly acquired properties and long-term redevelopment scenarios based on the school’s financial capacity. The effort is further complicated by the campus’s location across both Cambridge and Somerville, requiring a nuanced permitting strategy due to differing applicability of Dover Amendment protections.
