Folks sometimes an advertisement comes along which just perfectly illustrates that there are sellers out there that have no clue what the hell they are doing. Let's take a
look at this gem:
STUNNING SEA FRONT APARTMENT IN MOUILLE POINT. 3 BEDS, 2 BATHS. FITTED KITCHEN WITH ALL APPLIANCES. LOCK-UP GARAGE AND SECURE PARKING BAY. PRICE R5,000,000 OR RENTAL R15,000 PER MONTH.
So let's analyse this ad. If you were to take out a 100% bond on this apartment you would be paying R62 176/month, which means that the difference between the rental (R15 000/month) and the bond payments is R47 176/month, over three time the rental itself! The owner is either selling it for way too much, or the rent is way too low.
Let's take a look at the (awful) payment and yield graph:

I'm not going to even comment, it pretty much speaks for itself.