Assessed Value is determines the basis number a town will use to determine your taxes. The only way to indirectly correlate it to a sale price would be to look at assessed values to sale prices as a ratio in a given geographic area. How this relates to the market prices will be specific to your area and may give you an average (not exact) ratio for that area. Looking at the taxes, tax history and potential upcoming changes in taxes and assessments will have more of an impact on your wallet so you might want to investigate those questions. To determine market value and the value a bank would consider lending on you need an APPRAISAL or a real estate agents current market evaluation (CMA). I hope that helps you.
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