Located downtown on the high visibility corner of 19th and K Streets, The Millennium Building is The Tower Companies' first Green building project. Renovated in 1997 to include the latest environmental standards and features, this 240,000 square foot "smart/green" Class A office building is Energy Star rated (one of only 1,500 in the U.S.,) includes a full-service on-onsite concierge, rooftop deck and garden, and is home to Teatro Goldoni, an authentic Venetian-inspired restaurant named one of Washingtonian Magazine's "100 Very Best Restaurants."

This building is now registered for LEED-Silver EB Certification