At the corner of Carolina Avenue and Lee Street in Jamaica Plain sits a charming cottage on an unusually large parcel of land for the surrounding neighborhood. This house, at 101 Carolina Avenue, was the first to be built on the street. Though significant for its age, also important is the role it played in the history of Jamaica Plain and the development of the field of social work. Between 1853, when the house was constructed, and 1913, most of the owners and occupants of 101 Carolina Avenue were related by marriage, blood, or business ties. In 1913, the house transformed from a single-family home into the home of the Jamaica Plain Neighborhood House Association, a settlement house that served the working people of Jamaica Plain and the influx of immigrants moving into the neighborhood.