In 1917 Fred Cook changed the faade of the Warner Block, dating this photo near 1920.
Notice the interurban trolley tracks on the south side of Grand River Avenue which is still a dirt road. The Oakland County Road Commission would not allow the paving of Grand River as long as trolley tracks were still in the road. Although the Detroit United Railway, DUR, owned the land between the rails and was responsible for its upkeep, the road commission refused to get caught maintaining the DUR's property. Grand River Avenue wasn't paved until 1930 a year after the tracks were removed.