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USGBC: More LEED-Certified Existing Buildings Than New

By ReNew Canada 03:35PM December 07, 2011

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LEED-certified existing buildings are outpacing their newly built counterparts, according to the U.S. Green Building Council (USGBC). As of this month, square footage of LEED-certified existing buildings surpassed LEED-certified new construction in the United States by 15 million square feet on a cumulative basis.

“The U.S. is home to more than 60 billion square feet of existing commercial buildings, and we know that most of those buildings are energy guzzlers and water sieves,” said Rick Fedrizzi, president, CEO ¬†and founding chair of the USGBC, in a release. “Making these existing buildings energy and water efficient has an enormous positive impact on the building’s cost of operations.”

Historically, USGBC has seen the stock of LEED-certified green projects overwhelmingly made up of new construction projects, both in volume and square footage. In 2008, the LEED for Existing Buildings: Operations & Maintenance (O&M) program gained momentum and, by 2009, projects certified under LEED for Existing Buildings: O&M surpassed those certified under its new construction counterpart on an annual basis, a trend that continued in 2010 and 2011.

Toronto's Sun Life Financial Tower is a LEED-EB certified retrofit. Photo: canadianpropertymanagement.ca

“This new data marks the first time that LEED-certified existing buildings have surpassed LEED-certified new construction cumulatively,” Fedrizzi continued. “The market is becoming increasingly aware of how building owners can get better performance through green operations and maintenance, and tools such as LEED for Existing Buildings: O&M are essential to cost-effectively driving improvements in our economy and environment. LEED as a rating system is continuing to evolve an ever greater emphasis on performance, not only in energy, but also water, location, indoor environmental quality, and materials.”

Projects worldwide are proving that green building doesn’t have to mean building new. By undertaking a large renovation, the recently LEED-certified Empire State Building has predicted it will slash energy consumption by more than 38 per cent, saving $4.4 million in energy costs annually, and recouping the costs of implementation in only three years (according to the USGBC).

The second tallest building in the world, Taipei 101, earned the tallest honor – LEED Platinum. The skyscraper was designed to use 30 percent less energy, reducing annual utility costs by $700,000 a year. San Francisco’s Transamerica Pyramid also earned LEED Platinum as an existing building, 39 years after it was originally built. The landmark’s onsite co-generation plant saves an average of $700,000 annually in energy costs.

In their Green Outlook 2011 report, McGraw Hill Construction found that by 2015, the green share of the largest commercial retrofit and renovation activity will more than triple, growing to 25 per cent to 33 per cent of the activity by value-a $14 to $18 billion opportunity in major construction projects alone.

 

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