The District has over 9,000 multi-family buildings, including rental apartments, condominiums, and cooperatives that together house 62% of District residents. The majority of these buildings were built prior to 1978. The District Department of the Environment (DDOE) offers a variety of resources and information to help multi-family buildings conserve water and energy, reduce stormwater runoff, abate lead and asbestos hazards, and minimize pesticide use. This site also includes links to additional external resources.
Energy Efficiency and Renewable Energy for Multi-family Buildings
Landscaping, Stormwater Management, and Green Roofs
Making the Case for Building Improvements:
Tips for Residents of Multi-family Buildings