Town of Harwich 732 Main Street, Harwich, MA 02645 tel. 508-430-7513, fax. 508-432-5039 The Board of Assessors has completed an interim year update of the Town's assessments from the previous year. This program addresses the changes in market value between January 1, 2000 and January 1, 2001. This will maintain the assessments at full and fair cash values and preserve the relative equity between ...