Sherman, TX Building Safety: Plumbing Permits (2026)

Section 3.02.001(a)(6) of the Sherman Code of Ordinances adopts the International Plumbing Code, 2021 edition, including appendices C, D and E, and § 3.03.006 amends it. Anyone who intends to install, alter, repair or replace a plumbing system regulated by code applies for a permit first under § 3.01.002. Applications go to the development services department through the online permit portal. The Appendix C single-family schedule lists mechanical, electric and plumbing permits at $75.00 and $30.00 for each additional inspection, and contractors schedule inspections through the portal.

The § 3.03.006 amendments are specific. PVC cell core and foam core piping are not allowed in ground unless installed to manufacturer's specifications. Section 608.17.1.1 requires a reduced pressure principal backflow prevention assembly on all carbonated beverage dispensers, one device per dispenser, and ice dispensers or ice machines need the same assembly. Private sewage systems, including septic systems, are regulated by Grayson County rather than the City of Sherman. For taps, new sewer and water taps are required on all new commercial and residential construction, every sewer replacement requires a new sewer tap, and sewer repairs 5 feet or less from the city main require a new tap unless the building official approves otherwise.

Other plumbing rules sit nearby. It is unlawful to occupy a building without running water and sanitary sewer services (§ 3.03.001(6) and § 3.03.002(10)). Swimming pool drainage must discharge into the sewer through an air gap with a code-approved P-trap, and every pool or spa fill line needs a reduced pressure principal backflow prevention assembly (§ 3.03.010). Plumbing contractors must register with the city and hold an active license from the Texas State Board of Plumbing Examiners, with liability insurance of $300,000.00 per occurrence. Backflow testers must register and hold a TCEQ tester license.