Key money is generally for those places which are already in the main market or having cheap rent and also it depends on the current market value of the place. Actually it happens when someone is winding up their business and intended to hand over the place to another business man and he demands the key money as a gesture of goodwill of the place .Key money is very common trend in business market and the business man’s are paying it frequently as they know the value of their investment.
It has become a very common trend of the market and, one after one doing the same...
Alternatively if you are going for the newly constructed commercial property then you don’t have to pay any key money but ofcourse rent will be as per the current market position