It was declared a National Monument under old NMC legislation on 23 June 1989. The Street Name has since been changed to; "Justice Mahomed Street".
References
26716, 9/2/258/0014
Further Reading
https://www.sahistory.org.za/people/ismail-mahomed
https://www.sahra.org.za/sahris/sites/default/files/heritagereports/14-005%20PHRAG%20Submission.pdf