The Extras:
Private dining is available for up to 300 people. On nights that the restaurant is closed (Tue, Thu, Sat, Sun), you can reserve the entire place. There's a professional event manager onsite for tours and information.
Parking:
The closest parking is the Cultural Center Garage (across from the Denver Public Library), which can be entered from 12th Avenue. Or there are pay lots off of Bannock and 14th.