Home › Venues › The b.side Lounge (Closed) The b.side Lounge (Closed) Tickets Buy tickets for concerts at The b.side Lounge (Closed) in Boulder, CO. No Upcoming Events No upcoming events scheduled at The b.side Lounge (Closed). Please contact us with any corrections. Hotels & Lodging Near The b.side Lounge (Closed) About the Venue The b.side Lounge (Closed) At-a-Glance Capacity 150Address2017 13th StreetBoulder, CO 80301United States Map & Directions Links Facebook Advertisement