The Hampstead Garden Suburb Archives Trust is a registered charity, known as Suburb Archives. It is responsible for ensuring that the archives of the suburb are properly cared for and are accessible to all.

Opened in 1909 by Hernietta Barnett the Institute has been at the heart of the Suburb Community for over a century. Dame Henritta believed in the transformative social powers of education and an adult education provider such as The Institute.

Series of photos, documents and objects from the Archive Trust that pre date the First World War, in the first seven years of the Suburb. 

The construction of the Old Hall Wing was completed two years after the Institute opened.