351 Gratiot AveDetroit, MI 48226 Phone: +1 313-967-0900Fax: +1 313-967-0908Toll Free: +877-STAY-HGI Hotel E-mailHotel Website Classification 4 Moderate First Class Commission Rooms Rates 10% 198 - Hoteliers! Is your information accurate? Update Here Hilton Garden Inn Detroit Downtown Location & Neighborhood Downtown Detroit in Harmonie Park - 16 MI, 20 min from Detroit Metro airport.Nearest Cross Street: Gratiot Ave