According to Harsh Roonngta, Chartered Accountant and a SEBI registered investment advisor, with the advent of financial planning as a profession, detailed spreadsheets are being made to justify how either of the two options (buy or rent) is better than the other in a given set of assumptions. The numbers are not difficult to tabulate. Today, rental yields are at 1.50-2 per cent of the market value of the property and, assuming you are salaried, you can get exemption for your HRA thus making the rentals effectively cheaper. You should factor in an annual escalation in rentals in line with the assumption of increase in property value. On the buy option is the cost of the property, the annual holding cost (such as property tax), availability of relatively lower rate funding due to tax break on interest (ignoring the tax break on principal component of home loan) and, of course, the all-important appreciation in the property value.