The way to evaluate that is split testing. 

Is it accurate for me to say that the city values the home less than people are willing to pay for the home?

I am looking at a property that I would like to build a fourplex on, and am trying to figure out if it is actually viable or not. the construction doesn't bother me so much as I am do construction for my living, I am trying to get an accurate cost per square foot.

Put together a quick but accurate scope of work (SOW). 

If you want to keep looking here, go for it, but be very clear on how to calculate cash flow so you are able to accurately see what the properties should expect to give you.

I know that as wholesaler we should only use comps to estimate the deals we find, but is zillow accurate in the pre-foreclosure listings in the Houston area?

so now the Bears have to go to Green Bay and we know how that always goes, so you won't have to worry about any hard feelings from inspectors or anyone else in city gov't, even if Cutler has a rare accurate day!

Is it helpful, timely and accurate or way behind any action that could produce a good deal?

The problem is the furnace tested the highest which means it was sent throughout the home.  

Common here, septic tanks get a perc  test, water test the well at the well head or ahead of the pressure tank.