Merchant Pacific House is of significance as a late Federation warehouse building of high technical and architectural quality. It has historic and environmental significance as one of a fine group of Federation warehouse structures located on the western side of the central business district. It is part of a cohesive street-scape of the early twentieth century buildings terminating in a vista to the Town Hall.
The interesting facade utilises contrasting dark brick and sandstone detailing with a central projecting bay. 127 York Street is an eight storey building in the mature Federation warehouse style, it has a steel framed structure with characteristic face brick facade, sandstone sills, lintels and decoration.
Merchant Pacific House is a physical record of the planning and design of early twentieth century commercial buildings. It is associated with the well-known architectural firm Spain, Cosh and Minnett who designed several buildings in Sydney in this style.