i think there's a general formula in finance that's used to value property. It is good to do our own estimation

I think is like this (simplified version) :
property value = operating cash flow (one year) (a)/ capitalization rate (b)
(a) operatin cash flow = rental - operating expenses (i.e: maintenance fees paid to management office + maintenance cost of the property like repairing works on the condo/house)
(b) capitlization rate can be your expected return.
Example 1:
condo can be rented out RM2K a month, maintenance fee: RM200 a month, miscellaneous cost (quit rent/insurance/repair works) on average RM100 per month.
you want 5% return
property value = (2000 - 300) * 12 / 0.05 = RM340K
if you buy the property above RM340K, your return is lower than 5% and vice versa.
Rearrange the formula to find out the return.
Example 2:
property cost: 400K
rental - operating expenses = 1500
Return: 1500 * 12/ 400000 = 4.5% per annum.
Of course can add "capital appreciation to the numerator" but this part is not certain/ until realised (sold your property) only is fair to take into consideration.
Added on January 19, 2011, 11:26 amI also got a ridiculous offer for a property.
wanna sell 470K, bank value 360K only. i just gave up

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