Located in Detroit, Michigan, OCM Event Space is a rooftop wedding venue. It sits on top of One Campus Martius on the 16th floor and offers views of the city’s downtown area. Loved ones visiting the city from out of town might appreciate its convenient city-center location. OCM Event Space offers 7,800 square feet of highly versatile space where you can hold your wedding celebrations. Here, 350 guests can fit comfortably for both a banquet and a strolling reception. This space can be divided into three smaller rooms, should you be planning a more intimate celebration.