Good point that newer investors will not have their own historical data to use for the expected value estimate.This is another good reason for new investors to talk with someone with some experience before jumping in - to get a realistic sense of expectations.  

Other items to consider distance of subject property to where you live, historical appreciation for area, goal of either appreciation or cashflow.since the analysis is on a house, I am guessing you are choosing to go with appreciation. the plus is that you have good cash flows for a house. if you bought a multi unit fourplex, you would probably have even better cashflows.Terry Lao

Unqualified, unspecific list historically returns only 1-3% and some of those returns will be negative. 

Mark Dusseau yes I do have my eye on a particular part of town that historically has alot of appreciation along with alot developments and activity going on in the area.

@Scott OtisI'd be attracted to a duplex in one of these historic neighborhoods of Denver, too.I'm familiar with a property in that vicinity that might be yours.

Here are my thoughts:1) Interest rates are still really low compared to historical averages.  

However, I recently renovated a duplex from 1900 that has some historically unique features.

Paras,First thing is to do some research into areas and trends that have good upside and downside protection historically.  

I'd imagine this will be useful for any investors looking to get a basic knowledge of the historic neighborhood that is poised for explosive growth, but if you already are an expert you are welcome to join to share your knowledge as well!

That has historically been high.Taxes are 1.1% of purchase basis.I self-manage, so that $50 monthly is just incremental costs on top of other properties I deal with.