The Jazz House:

3192 Adeline in Berkeley

It's on the West side of Adeline (i.e. the side away from the hills) between Woolsey and Fairview, (right where Martin Luther King and Adeline meet up). The building is not terribly well marked - its only distinguishing feature is the word "ANT" above the entrance, and a blue light above the entrance. It's right across from the Black Repertory Theatre.

By BART:

Get off at Ashby BART, cross Martin Luther King (MLK) and walk South (left) on MLK (away from Ashby Street) about three short blocks to where MLK meets Adeline. The space is on your right. If you cross Fairview you've missed it.

By CAR from SF:

Take the Bay Bridge, take the Powell Street Exit,

Turn RIGHT onto POWELL ST., continue for 0.69 miles
Turn SLIGHT LEFT onto STANFORD AVE., continue for 0.76 miles
STANFORD AVE becomes ADELINE ST. continue for 0.32 miles
Once you've crossed ALCATRAZ, you've got a block and a half to go. The Jazz House is between WOOLSEY and FAIRVIEW. If you pass ASHBY, you've gone too far.