Downtown Guelph is the central business district of Guelph, Ontario, Canada. It is bordered by Wellington St. E. to the south, Woolwich St. to the East, Dublin St. to the west and Norwich St. to the North. Downtown Guelph is known for its distinctive limestone architecture and heritage buildings. Many of Guelph's historically designated properties are in …Downtown Guelph is the central business district of Guelph, Ontario, Canada. It is bordered by Wellington St. E. to the south, Woolwich St. to the East, Dublin St. to the west and Norwich St. to the North. Downtown Guelph is known for its distinctive limestone architecture and heritage buildings. Many of Guelph's historically designated properties are in or near the downtown area.