Zillow Advice: Zestimates - Why is my condo/tic valued at so much less per square foot than the others in my building? http://www.zillow.com/advice-thread/Why-is-my-condo-tic-valued-at-so-much-less-per-square-foot-than-the-others-in-my-building/502257/ Zillow Advice | Zillow Real Estate