Being presented for the 20th time in 2025, Doors Open Lowell is the community's signature preservation, architecture, and design event, the first of its kind in the United States when it debuted in 2002. It's a celebration of urban living and culture where people and preservation have made Lowell a creative and exciting place to live, work, and visit.
Presented as part of National Preservation Month, the event has opened the doors to over 100 of Lowell's historic buildings through the years, many not normally open to the public. In 2004, it was recognized as an "innovative program" by the Advisory Council on Historic Preservation and the White House when Lowell was designated a Preserve America Community.
In addition to the Lowell Historic Board, presenting partners include the Lowell National Historical Park, Lowell Heritage Partnership, City of Lowell Office of Cultural Affairs and Special Events, Mosaic Lowell, and Greater Merrimack Valley Convention & Visitors Bureau as well as a variety of public and private sponsors.
