The main building of the Cambridge Public Library is an historic library building at 449 Broadway.
It was built in 1888 with land and full construction funding donated by Frederick H. Rindge, a Cambridge native and philanthropist.
Its Richardsonian Romanesque design was by Van Brunt & Howe.
 The building was added to the National Register of Historic Places in 1982.

A $90 million expansion and renovation of the library, led by the Boston architectural firms William Rawn Associates and Ann Beha Architects, opened on November 8, 2009.
The new addition more than triples the square footage of the building, and is the first building in the US to make use of European Double-Skin Curtainwall technology.
Architectural drawings and construction photos are available here.
 During most of the construction, the library collection had been relocated to the Longfellow School.
The main building of the Cambridge Public Library is an historic library building at 449 Broadway. It was built in 1888 with land and full construction funding donated by Frederick H. Rindge, a Cambridge native and philanthropist. Its Richardsonian Romanesque design was by Van Brunt & Howe.  The building was added to the National Register of Historic Places in 1982.
A $90 million expansion and renovation of the library, led by the Boston architectural firms William Rawn Associates and Ann Beha Architects, opened on November 8, 2009. The new addition more than triples the square footage of the building, and is the first building in the US to make use of European Double-Skin Curtainwall technology. Architectural drawings and construction photos are available here.  During most of the construction, the library collection had been relocated to the Longfellow School.
Cambridge Public Library