Town Hall Address 1400 Main St., Suite 460 Southlake, TX 76092 United States- Tarrant, Denton County Website https://www.cityofsouthlake.com Zoning 817-748-8621 1400 Main St., Suite 310 Southlake, TX 76092 United States Town Clerk 817-748-8400 1400 Main St. Southlake, TX 76092 United States Water 817-748-8098 1400 Main St., Suite 320 Southlake, TX 76092 United States Tax Collector 817-748-8279 1400 Main St., Suite 420 Southlake, TX 76092 United States Code Enforcement 817-748-8236 1400 Main St., Suite 250 Southlake, TX 76092 United States County Tarrant, Denton