The District of Columbia (“District”) Department of General Services (the “Department” or “DGS”) is soliciting a Design-Builder to design and construct a new Fort Greble Urban Nature Center that includes demolishing the existing Fort Greble Recreation Center, providing necessary site modifications for ADA compliance of the building, and implementing various site improvements (the "Project"). The goals of this Project are to expand the existing building footprint, improve the functions of the programmed and service spaces, implement ADA compliance upgrades, revitalize areas that may be better utilized, and enhance the overall recreational experience for the community. Furthermore, the major goal for the new urban nature center is to provide a new 2000 SF LEED Silver building with energy efficient systems, and the primary use will be educational activities for the community. The purpose of this RFP is to determine which Offeror will be awarded the Design-Build contract (“Agreement”, Design-Build Agreement” or “Contract”) for the Project.