From a source in South Africa:
“It is almost certainly COLLONDALE, East London, in the days of JATS, and some time after 1942. The Ben Schoeman airport, now East London, is on the site.The photograph is published in Dave Becker’s book “Yellow Wings” about the JATS days. Although the images are reversed ie between yours and that in the book and yours shows a portion of that in the book, the building layout is distinctive and matches.
The text records that “41 AS ceased training on 31 March 1945, still having 55 Ansons and 3 Harvards on strength. It became one of 7ADs disposal centres for aicraft after the war and was the scene of a huge fire when a large number of Oxfords burnt out while in storage.”
I trust this may be of use- looks like a reversed print or scan somewhere along the line.