Before I came across USC's 1929 picture of the Hotel Regina, I found this image taken a block south at the corner of Wilshire and Westlake.
"Site of new building, Wilshire Boulevard and South Westlake Avenue, Los Angeles, CA, 1934."
USC Digital Library
Here's a close-up of the left side of the picture. The Westlake Fireproof Garage was at 630 S Westlake Avenue. Looking at Historic Aerials, it appears to have survived until at least 2005 (it's gone by the first GSV image in 2007), although I haven't found any other pictures. The later City Directories list it as the Wilshire-Westlake Garage. On the far left is the Hotel Barbara (now the Hotel Barbizon), which we've seen several times before. In front of that is the 1924 Irving Apartments building at 608 S Westlake Avenue.
Detail of picture above.
Other than losing a couple of feet off their height, the Irving Apartments have survived very well.
GSV
The "new building" mentioned in the caption of the first picture was the Library of the Los Angeles County Medical Association. USC also has these pictures of the building going up.
"Library & assembly hall, Wilshire Boulevard & South Westlake Avenue medical building, Los Angeles, CA, 1934."
USC Digital Library
"Progress shot of Wilshire Medical Library, Southern California, 1934."
USC Digital Library
"Wilshire Medical Building, Southern California, 1934."
USC Digital Library
On the right of the construction pictures is the 1915 Boynton Apartments building at 1901 Wilshire Boulevard. It's now known as the Wilshire Pointe Apartments. I haven't found any other pictures of the Boynton, but I'd guess that the front has been modified.
GSV
Behind the Westlake Fireproof Garage in the top image is the 1913 Turquoise Apartments building at 631 S Bonnie Brae Street. A ghost sign is still visible on the side of the building. On the left is The Boynton/Wilshire Pointe Apartments, while on the right is the corner of The Universal Church which now dominates the block.
GSV