In 1967, the Halifax Student Housing Society finalized the creation of a child care service to respond to the needs of its residents. The original design for the construction of the Peter Green Hall Residence included a nursery school. In October 1967, the child care facility opened at Peter Green Hall. It was called the University Children's Centre (UCC). the University Children's Centre was the first public child care centre in Nova Scotia and the first university residence Child Care Centre in the Atlantic Region. The UCC began as a babysitting service, with a small staff caring for a handful of children who lived in the building. In response to an increased demand for quality child care during the late 1960s and early 1970s, UCC soon offered a full-time child care program and opened its doors to members of the community living outside of Peter Green Hall. Demand increased over the years and in 1980 UCC opened a second location on Dalhousie University campus. Then in 1988 a third location was opened on the Dalhousie campus.

The constant expansion of the UCC represented an increase and diversification of the clientele. This soon stretched beyond the mandate of the Society and was very distant from its original purpose. In 1989, the HSHS Board of Directors initiated the process of separating the Peter Green Hall Unit from the other two Dalhousie Units. The separation was completed in 1990 and the Peter Green Hall Unit of the University Children's Centre became known as the Peter Green Hall Children's Centre.

Today, the Centre serves 91 children from four months to ten years of age. The Centre boasts top quality programming and teachers. PGHCC is often referred to by authorities in the child care field as a model in the area of early learning and child care.