Just take a quick look at this website for information about car sharing in Cologne.
The closest parking garage is the CONTIPARK Groß Sankt Martin.
No, since the hotel cannot be any more central in the city heart of Cologne, we don't have our own parking lots.
You find the way descripzion from the main train station to the Stapelhäuschen here.
Here you find the way description from the airport to the stapelhäuschen.
The next public transport station is called Heumarkt. Click the link here to see how to get there.