Restore Mass Ave's mission is to engage residents, embassies, and public and private partners to plant and sustain a full canopy of trees on Embassy Row, Washington D.C.’s most famous diplomatic avenue. We work to revive the historic, park-like environment of trees and supporting landscape showcasing the important mansions that line this street. Our goal is to make Embassy Row the best remaining “grand avenue” in the nation and a model for sustainable historic streets everywhere.