317 Outram RoadSingapore, Singapore 169075 Phone: +65 6733-0188Fax: +65 6733-0989Toll Free: +800-HOLIDAY Hotel E-mailHotel Website Classification 6 First Class Commission Rooms Rates 10% 512 - Hoteliers! Is your information accurate? Update Here Holiday Inn Singapore Atrium Location & Neighborhood Downtown - 25 KM, 25 min from Changi Intl airport.