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Richardson, TX Building Safety: Plumbing Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Adopted code
International Plumbing Code, 2021 Edition
Sewer depth minimum
12 inches below grade
Water heater access
Required above 8 feet elevation
Storm drain design rainfall
5 inches, 100-year hourly rate
Appeals body
Board of Adjustment

Summary

Richardson enforces the 2021 International Plumbing Code, with Appendices C and E, as the Richardson Plumbing Code under Sec. 6-287. Any plumbing work requires a permit through the Building Inspection Department, and the city has amended dozens of IPC sections to fit local conditions.

There is hereby adopted by the City of Richardson, Texas, the International Plumbing Code, 2021 Edition, together with Appendices C and E and amendments, a copy of which is on file in the city secretary's office and made a part of this article for all purposes, the same as if copied in full herein... "[A] 102.5.1 Change in tenancy or ownership. It shall be unlawful to make a change in tenancy or ownership of any existing building or lease space without first making application for and obtaining approval for a certificate of occupancy."

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 35 Update 2).

Full Breakdown

" Section 6-288 then amends dozens of IPC provisions for local conditions. 1). 10). 6). 5). 1). 1). 4).

Violations & Fines

Performing plumbing work, or changing tenancy or ownership of a building or lease space, without the required permit or certificate of occupancy violates the Richardson Plumbing Code. Failed inspections require correction and a paid reinspection fee before the Building Inspection Department will sign off, and unresolved code disputes are appealable only to the board of adjustment, not directly to municipal court.

Frequently Asked Questions

What plumbing code does Richardson use?
Richardson adopted the 2021 International Plumbing Code, with Appendices C and E, as the "Richardson Plumbing Code" under Sec. 6-287, along with a set of local amendments in Sec. 6-288 covering permits, inspections, sewer depth, backflow prevention, and drainage design.
Do I need a permit to change tenants in a commercial space?
Yes. Section 6-288 makes it unlawful to change tenancy or ownership of any building or lease space without first applying for and obtaining a certificate of occupancy, an amendment added to IPC Section 102.5 specifically for Richardson.
How deep must a building sewer be buried in Richardson?
Amended Section 305.4.1 requires building sewers to be a minimum of 12 inches below grade, a stricter local rule layered onto the base International Plumbing Code requirement.
Where do I appeal a plumbing permit decision?
Amended Section 113.1 routes appeals of the building official's plumbing code orders and decisions to the board of adjustment, which is appointed and operates under Appendix A, Article XXV of the city's zoning ordinance.

Sources & Official References

Other rules in Richardson

All Richardson rules

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