The residential sector makes up about 70 percent of building energy demand. This demand is expected to grow rapidly over the next decade. Although the sector offers huge potential for energy efficiency gains, a range of barriers impedes the realization of these benefits. Fortunately, a wealth of global experience shows how these challenges can be overcome through a combination of sound planning, strong policy and regulatory frameworks, well designed financing and incentives, robust institutional and market development, and accessible information to scale up residential energy efficiency.