National Grid’s new corporate center at Reservoir Woods in Waltham has earned Platinum-level LEED certification from the U.S. Green Building Council (USGBC) for its state-of-the-art "green" design, construction and amenities, according to a statement.

The building is one of two single-tenant buildings in the world to earn LEED Platinum designation for both core and shell construction and for its commercial interior. It is the first certified LEED Platinum core and shell building in the state, and one of just a handful in the state to earn Platinum-level LEED commercial interior certification, a statement reads.

"We are delighted to have earned this prestigious distinction," said Tom King, president of National Grid. "Our state-of-the art green workspace reflects our passion and commitment to developing innovative energy conservation and efficiency initiatives. We hope this building will inspire others to join us in responding to one of the most important challenges of our time – environmental sustainability and mitigating the effects of global climate change."

He added: "Davis Marcus Partners and other members of the team served as enthusiastic partners in this important achievement. We commend their dedication and talent in helping to make this building an environmental role model."

The new building was designed and built in partnership with energy efficiency experts from National Grid; Reservoir Woods developer Davis Marcus Partners; construction manager John Moriarty & Associates; mechanical engineers and core and shell LEED consultants AHA Consulting Engineers Inc.; base building architect ADD Inc.; tenant project manager Jones Lang LaSalle; interior architect and interior LEED consultants Sasaki Associates and the property owner, Reservoir Woods East, a partnership between affiliates of Davis Marcus Partners and Prudential Real Estate Investors (PREI).

Reservoir Woods’ energy and water-saving features include:

• Lighting that uses 40 percent less electricity than a typical commercial building in the state with occupancy sensors, task oriented lighting and daylight sensors at workstations that save more than 800,000 kilowatt hours annually – enough to power 133 homes for one year.
• There are high-efficiency heating and cooling systems with adaptable controls to sense outdoor and indoor temperatures, water conservation devices including dual-flush toilets, automatic sensor faucets and a rainwater recycling system that together are expected to reduce consumption by about 2.4 million gallons per year.
• The building contains approximately 20,000 square feet of roof-top solar panels that generate enough electricity to power about 30 homes each year and offset 400,000 pounds of CO2 annually.
• Exterior shading devices were placed on southern-facing exposures and a highly reflective white roof that help keep the building cool. Also, the building contains air quality systems featuring carbon dioxide sensors installed in ventilation ducts.
• About 28 percent of the materials and furnishings are recycled; 68.5 percent of the wood is sourced from sustainable forests and more than 93 percent of construction waste was recycled.