What Does It Really Cost To Build Green?
Eco-friendly building design and construction is expected to make up at least 20 percent of all new construction by 2009. There has been extensive coverage of how much money homeowners can save on monthly utilities costs if they build an eco-friendly home. But how much is the one-time capital cost? The answer may surprise you.
According to a 2003 study of 33 LEED-certified office and school buildings in California, the average premium cost per project was less than two percent per square foot. The level of LEED certification greatly affects the premium construction cost per square foot, because higher levels involve more complex features like solar energy panels.
The California study, summarized on Buildings.com, breaks down the average premium cost per LEED certification level. The eight buildings at the lowest LEED-certification level had an average cost premium of less than 1 percent. The 18 silver buildings averaged a 2.1-percent cost premium, while the six gold buildings had an average premium of 1.8 percent. The single platinum building was at 6.5 percent.
“More and more buildings can be built at the LEED-certified level for little or no cost premium,” says Greg Kats, author of the California study. “You can easily get at least half-way to certified at a zero-cost premium.”
Kats warns homebuilders to beware of “glued-on green.” That is the decision to tack on eco-friendly options like low-emitting paint or recycled carpet in the middle of the project. Eco-friendly building works best when it is planned out well from the beginning, Kats says.
Homebuilders should also beware of “greenwash.” These are products put out by companies who don’t really practice green principles on a daily basis, but merely want to make a buck off a product whose eco-friendliness is questionable at best. These types of companies market green products to ride the current trend, but don’t necessarily have the earth as a top priority.
Ultimately, with a little research and planning, basic eco-friendly features like Low E windows, recycled carpet and extra insulation can be integrated into your new home with nominal, if any, extra cost. Why not, considering your helping the earth and saving money on a monthly basis in the long run.



