There is a bus right in front of the house that brings you to Köln Messe/Deutz within 15mins!
In our two story apartment you will have your own floor. The second floor will be entirely yours. The bathroom and the kitchen are in the first floor which are shared with me because I live in the first floor.
It's 20mins away from Cologne's city center by public transport. The train station is only 5 minutes further.