The Board of Selectmen last night voted to approve a 9% increase in property taxes for fiscal year 2009 (07/01/08 – 06/30/09). That works out to an average increase of $648 per family. Property taxes are based on real estate valuations. In Southborough, the average valuation for a single family home decreased from $576,600 in Read the full article → from Property taxes are on the rise