I should really show you https://csggis.drdlr.gov.za/psv/
And then querying the underlying data from http://csg.drdlr.gov.za/esio/searchindex.htm (eg: Search on Town, Eastern Cape - Urban - Town/Region Name: WALMER - Parcel: 2905 - Portion: 0, to get a the general plan or plan for plot). This is available for the WHOLE country.