An audition for a play, TV show, or other performance can be held in any venue with the right lighting, sound, and space requirements. A few spacious and effective venues include gymnasiums, cafeterias, lofts, and warehouses. You won't have as many professional amenities on hand unless you bring them, however.
If you want venues that include microphones, props, studio lights, soundproofing, and other options, check out the audition rooms of acting schools! These educational institutions have audition rooms on hand most of the year that can be booked by the hour, half day, or full day. The school will also have extra equipment like costume changes, microphones, and ceiling mounted lights for the audition.
For a dance audition, you'll need a few more amenities. Seek out venues that have lacquered wooden floors for a proper grip and mirrored walls so dancers can check their posture. Dance schools and
yoga studios are good places to hold dance performance auditions.