Town Hall Address 305 Century Pkwy. Allen, TX 75013 United States- Collin County Website https://www.cityofallen.org/ Zoning 214-509-4160 305 Century Pkwy., 2nd Floor Allen, TX 75013 United States Fire District 214-509-4400 310 Century Pkwy. Allen, TX 75013 United States Town Clerk 214-509-4100 305 Century Pkwy. Allen, TX 75013 United States Water 214-509-4560 305 Century Pkwy., 1st Floor Allen, TX 75013 United States Sewer 214-509-4560 305 Century Pkwy., 1st Floor Allen, TX 75013 United States Tax Collector 214-509-4626 305 Century Pkwy. Allen, TX 75013 United States Code Enforcement 214-509-4180 305 Century Pkwy. Allen, TX 75013 United States County Collin