The October 23 1953 edition of the Toronto Daily Star contained an ad for a skating rink at Danforth and Broadview:
A search through the Toronto city directories revealed that Riverdale Terrace didn’t last long. It first appears in the 1952 city directory, and last appears in the 1959 directory.
When searching through the directories, I also discovered that there was a baseball stadium at Danforth and Broadview between 1952 and 1960 (when, presumably, it was destroyed to make room for the Don Valley Parkway). The stadium was called Millen Memorial Stadium, after Gordon Millen, the MPP for the riding who passed away in 1948 while in office. (I couldn’t find anything on Millen Memorial Stadium, but the Spacing Toronto website has photos of people playing baseball in Riverdale Park.)
The building currently at this location, the City Adult Learning Centre, first appears in the 1964 city directory under its original name, Parkway Vocational School.