The lenders in South Africa are quite strict when it comes to their lending criteria, but don't let that deter you from applying.
As long as you can afford the property and the monthly installments, have a good credit record and manage your bank account in an orderly manner you stand a good chance of approval.
The other requirements are that the installment may not exceed 30% of your monthly income and the loan will comply with the National Credit Act. This also means that you may not apply for a new or further loan whilst under debt review or administration.
Ask your bond originator to pre-qualify you so that you know what you can realistically apply for. This will help avoid disappointment in the end.