Buildings & Grounds Drexel buildings and grounds coordinate several sustainability projects and initiatives, including rainwater reuse, brownfield redevelopment, public realm improvements, and more. Drexel is a property partner of Philadelphia 2030 District, a voluntary effort to achieve deep reductions in energy use, water use, transportation emissions, and to improve stormwater management. Drexel has a tree inventory! This map in ArborPro shows you what our urban forest canopy looks like.