WASHINGTON, May 28, 2013 (GLOBE NEWSWIRE) -- CoStar Group, Inc. (Nasdaq:CSGP), commercial real estate's leading provider of information, analytics and marketing services, today announced that the remodel of its headquarters at 1331 L Street, NW in Washington, DC has been awarded LEED Platinum Certification for Commercial Interiors ("CI"), the U.S. Green Building Council's highest level of LEED certification. "I am very pleased we earned this distinction from the U.S. Green Building Council," stated Andrew Florance, Founder and CEO of CoStar Group. "We are deeply committed to sustainability and to creating world class, environmentally conscious workspaces throughout the CoStar office network. LEED Certification is an important factor we consider when touring for new office space and once we commit to a lease, we look to improve the space with sustainability as a primary objective." CoStar uses among the most progressive best practices in green building technology. In addition to its newly Platinum-Certified space in Washington, CoStar's 25,000-square-foot Boston office was awarded LEED Platinum CI in 2010, and its 27,000-square-foot office in Atlanta and 29,000-square-foot office in San Diego are both pending LEED Platinum CI certification. Currently, CoStar's offices in Chicago, Dallas, Houston, Boston, Atlanta and Washington, DC, are maintained in LEED Gold-Certified buildings. CoStar is also an ENERGY STAR™ Partner and was honored in 2009 with an Excellence in ENERGY STAR Promotion Award. The Company's Los Angeles, Chicago, Houston, Denver, Phoenix and Boston offices are all ENERGY STAR certified. CoStar's commitment to sustainability extends well beyond its office space. The Company also provides significant transit subsidies to encourage employees to take advantage of public transportation options, reducing automobile use in and around the metro areas surrounding many of its offices. In addition, CoStar uses a fleet of customized, eco-friendly hybrid field research vehicles, equipped with state-of-the-art technology to collect comprehensive commercial real estate information and high-quality property photography. Each Toyota Prius in the CoStar fleet gets approximately 50 miles per gallon in the city, reducing fuel consumption by approximately 161,000 gallons per year. In 2010, the Company added the fully electric Chevrolet Volt to its fleet of field research vehicles, further reducing CoStar's carbon output while enhancing its extensive field research capabilities.