How so? It's comp driven.
I might have been a bit hard on Zillow in my original post but as I have checked Zillow price estimates to what I see in my local market, it has been both much higher and much lower. That could have been due to rapid market fluctuation and Zillow not keeping up but I would not rely on it for anything more than the most general guide.
For example, a house Zillow shows as $115,000 has a lot of comps at $95,000 in better condition. It shows one house that is a near total wreck (needing $70,000 of repairs) at market price.
In some areas the market is crashing so fast the AVM’s and Zillows can’t keep up with it.