Town Hall Address 2 Renshaw Road Darien, CT 06820 United States- Fairfield County Website http://www.darienct.gov Town Clerk 203-656-7307 United States Tax Collector 203-656-7314 United States Assessor 203-656-7310 http://assessment.darienct.gov/pt/forms/htmlframe.aspx?mode=content/home.htm United States Building 203-656-7485 United States Zoning 203-656-7351 United States Water 203-656-7346 United States Sewer 203-656-7346 United States Probate Court Darien-New Canaan (PD-52) Tax Adjustment Uniform Fiscal Year- July, January Tax District Yes. Please refer to "Tax District" information on page 2 of guide Indices General Index - real property - town taxes - sewer assessment - sewer use - tax district taxes Town Hall Hours Monday to Friday – 8:30 to 4:30 Water Source Water and Sewer, WPCA County Fairfield