Boston architecture and design firm ADD Inc. has announced its headquarters at 311 Summer St. has received Leadership in Energy and Environmental Design (LEED) Platinum Commercial Interior Certification by the U.S. Green Building Council (USGBC).

ADD Inc’s offices are the first architecture and design studio space in the state to receive platinum certification, according to a statement.

Located in the Fort Point Channel neighborhood, ADD Inc.’s renovated and rehabilitated the Summer Street building to preserve the identity of the building while incorporating strategic sustainable design practices. The original structure, centered among commercial warehouses dating back to the early 1900s, was restored to full occupancy to create 66,000 square feet of office and retail space, according to a statement.

ADD Inc. incorporated a variety of design systems to minimize environmental impact, including energy and C02 reductions through the creation of multiple zones to utilize daylight and heat gain; water conservation through dual-flush toilets and high efficiency faucets; construction waste recycling; operable windows for ventilation; green operations and a range of daylighting strategies.

"Our commitment to sustainable design is an extension of our core beliefs and the way we live and work," said Frederick A. Kramer, president of ADD Inc.