Town of Darien Zoning Regulations (PDF) - The regulations were recently amended by the Planning and Zoning Commission effective October 9, 2022 (through Amendment Number 90). The Zoning Regulations are available for purchase from the Planning and Zoning Department for $20. Each individual zoning regulation amendment since late 2008 can be found at Zoning Regulation Amendments December 2008 to Present. This covers amendments Number 21-present (which is Number 90).
Zoning Map of Darien (PDF) - The most recent zoning map amendment took effect on October 22, 2023. This was to place the MU zone upon 1921 Boston Post Road.