Brattle Hall

Brattle Hall is a historic building along Brattle Street near Harvard Square in Cambridge, Massachusetts. It was constructed in 1889 for the Cambridge Social Union - established in 1871 - when that organization moved into the adjacent William Brattle House that year. Brattle Hall was built to house the organization's library, and to provide a space for larger meetings and social functions. Brattle Hall was designed by Longfellow, Alden & Harlow, originally in the Dutch Colonial Revival style, but it acquired more of a Colonial Revival feel with the 1907 addition of brick ends, designed by Charles Cogswell.
The building continues to serve as a social center today. It houses the Brattle Theatre, a repertory movie house operated by a local non-profit since 1953, a restaurant in its basement, and a coffee shop on its first level.
The building was listed on the National Register of [Historic Places] in 1982, and included in an expansion of the Harvard Square Historic District in 1988.