Reading the other thread, I was curious about the value of my home.   
Back story, bought it in 2008 for $174k. 3 bed 1 bath, about 1100sq/ft.   Only made improvements since.  New siding, new heat pump and a/c, finished upstairs room, new carpet throughout, landscaping, new patio, and parking pad off alley.   
Zillow is showing my at $169k today:   
   
House on a street over 3b/1b, 1054sq/ft sold for $222k in Oct. 2014:   
   
Another on a street over 3b/1b, 1054sq sold for $222k in Apr 2014   
   
Down the street, same size sold for $190k in May 2014   
   
WTF happened to my value?