Environmental Sense

Energy efficiency

Buildings account for 35 percent of U.S. energy use and over 60 percent of electricity demand. Green homes consistently use a third less energy, making energy efficiency the cornerstone of your high performance building project. The savings to owners and residents matter even more on the budgets of affordable housing, particularly since gas and electricity prices are only rising.

An efficient home that keeps residents cool in the summer and warm in the winter begins with smart design. You can take advantage of the sun to provide free heat and light and plant trees to shade buildings. Add a building envelope that insulates well, and heating and cooling systems will not have to work as hard. You can even save money by reducing the amount of ductwork needed. Bills will be lower, as will demand for electricity from polluting power plants. You will deliver a building that does more with less and that does its part to cut global warming emissions. Go to the Energy Efficiency page.

Clean air and water

You can best address on-site environmental issues by conserving water, managing stormwater runoff, and eliminating air pollutants and toxins. Switching to water-efficient building systems and appliances can cut use, and bills, by at least 20 percent. Site improvements to control sewer overflows during storms will have an even greater effect on water quality in our area, particularly the Anacostia and Potomac Rivers and Rock Creek. Replacing pavement with landscaped areas keeps stormwater on your site as your development gains beauty and shade. Making the built environmental function like a forest also cleans the air and gives kids a place to play and explore. Go to the Water Savings and Zero Net Impact pages.

The Washington, D.C. metropolitan area is also struggling to meet air quality standards. You can help keep asthma at bay by minimizing indoor air pollution and ground level ozone. Healthy materials that keep dust and allergens out and that do not release VOCs are now widely available at competitive prices. Combined with a high performance building envelope and good ventilation, they boost residents' health. And when you choose to build homes that let people get to work and do their shopping without cars, residents can enjoy an active lifestyle and avoid polluting with their tailpipes. Go to the Healthier Homes and Zero Net Impact pages.

Natural resource conservation

Building materials run up a hidden bill of habitat and biodiversity loss, contain the "embodied energy" used to harvest and transport them around the globe, and contribute to pollution through manufacturing, distribution, and waste disposal. You can address each of these impacts with cost effective measures that will improve your building. Choosing salvaged and recycled-content materials opens up a world of high-quality options. Purchasing from local manufacturers cuts transportation costs. Materials-efficient design and building techniques save money and labor. The potential for waste reduction is even greater. You can reduce waste 70 percent or more by reusing and recycling debris on the construction site. Markets for all of these products and services are growing fast, so now is the time to look for new materials that meet your needs and tread lightly on the planet. Go to the Zero Net Impact page.

Green neighborhoods

Affordable green neighborhoods are the fundamental building block of vibrant, healthy cities: cities that reduce our impact on the environment, generate new engines for economic growth, and maximize our quality of life, especially for those most economically challenged. Your efforts to build with the environment can be part of larger community-wide plans. When we embrace sustainable infrastructure designs, preserve natural features, and extend easy access to key amenities like transit and retail, our neighborhoods and cities will be more than places to live; they will become places to grow. Go to the Leveraging Natural Capital page.