The April 25 1930 edition of the Toronto Daily Star included these three renderings of new upscale houses in the Forest Hill district:
The Toronto city directories might have inadvertently caused this problem. The 1931 directory lists Alfred A. Walker at 10 Ava Crescent, not 7. The 1932 directory is confusing: it lists Alfred A. Walker at 10 Ava and Alfred E. Walker at 7 Ava. The Names section of the directory lists Alfred A. as the president of the Hudson-Essex company at 10 Ava, and lists Alfred E. at 7 Ava with no listed occupation. By the 1933 directory, Alfred A. is listed at 7 Ava. He is there in 1937 as well.
Either the city directory didn’t have the address correct, or Mr. Walker was living at 10 Ava for a bit before finally settling in at 7 Ava. I’m not sure.