My guess would be somewehere near the top of Jergins Trust Building with the tower of the Ocean House Building in the background. Here's a view of front from 20 years earlier which I think is new to NLA.
"Exterior view of the Jergins Trust and State Theatre building at night in Long Beach, 1931."
USC Digital Library
The building was demolished in 1988, but some of the semi-circular driveway still exists.