benchmark investment property returns

Hi all,

I was wondering if an experienced investor could point me in the right direction in terms of what benchmark I should use to determine whether the investment return i am getting is reasonable.

Opportunity cost is the question so is it as simple as comparing a property investment return to a term deposit rate, 10 year government bond rate et al?

I have a 2 bedroom apartment in Adelaide which has appreciated +150% over a 10 year period however the gross and net yields are quite low, the net yield is c6% (mainly due to the fact that i have paid off a large portion). Based on capital growth, the investment has been fantastic however based on yield it is questionable as without repayments, the net yield would be <5%.

My investment objectives are quite simple, I want an investment with capital growth that will provide rental income in retirement (I am 33). I guess based on the above, i have achieved my goal?

I would appreciate any insight into what experienced investors use to determine the effectiveness of their invesment. I am trying to bring a little sophistication to my assessment…!

Regards

Beau