The JaM Cellars Ballroom is located upstairs in the historic Napa Valley Opera House and is a stunning 300-650-person venue.
The address is1030 Main St. Napa, CA 94559. (The ballroom is NOT located on 1st Street nor is it to be confused with the wine tasting room.)
JaM Cellars Ballroom directions may be found HERE.
There is an elevator for accessible entry.
The Blue Note Napa club is located downstairs within the Opera House building.