It would be hard to say what your house is worth today without seeing your home. So saying what it was worth last year is just as hard. The market statistically, across the board, dropped approximately 12% by Mid Hudson MLS statistics. You tax assessement gives you an idea, but is not accurate enough to claim a worth. Tax assessements are usually two years behind (a 2009 assessemant is based on 2007) What is your reason for needing a value from last year? If you need an accurate Brokers Price Opinion from 2008 it can be done. Call me to discuss. 845-591-5274. You can also get an actual appraisal for a date in the past.