Susannah Place, a row of four terrace houses in The Rocks, Sydney, was built in 1844 by Irish immigrants. These humble homes provided housing for over 100 working-class families for more than 150 years. The terrace remarkably survived numerous challenges, including plague outbreaks and slum clearances. Conservation efforts began in 1987, and after the last residents left in 1990, significant remedial work was completed. The New South Wales Historic Houses Trust subsequently transformed the terrace into a museum. Unlike highly polished heritage sites, Susannah Place Museum displays distinct historical eras within each house. Authentic features like faded wallpaper and stripped paint are complemented by donated items from former tenants. Number 58 is preserved as it was when its last resident departed in 1974. The kitchen in number 60 depicts the 1930s, informed by the tenant's grandchildren's memories. A recreated corner shop at number 64 reflects the 1910s-1920s, based on oral histories and period items. Susannah Place's historical significance lies in its age, its representation of working-class life, and the documented adaptations made by its residents.