Lewisville, TX Building Safety: Plumbing Permits (2026)
Key Facts
- Adopted code
- 2021 IPC, Appendices C, D, E
- Enforcing dept
- Neighborhood and Inspection Services
- Late-permit penalty
- Investigation fee equals the permit fee
- Fee source
- Set by City Code § 2-201 schedule
- Appeal window
- 30 days to City Manager
Summary
Lewisville enforces the 2021 International Plumbing Code, with Appendices C, D, and E, as City Code § 4-111, administered by the Neighborhood and Inspection Services Department. Section 4-112 amends IPC § 109.2 so permit fees follow the city's § 2-201 fee schedule, and § 109.3 adds an investigation fee, equal to the permit fee, for anyone who starts plumbing work before pulling the required permit.
The 2021 Edition of the International Plumbing Code and its Appendices C, D, and E, published by the International Code Council, Inc., amendments and such other addendum as adopted and published by the International Code Council, are hereby adopted as the code of the city for all plumbing systems in the city with such local amendments as set forth in this Article. ... 109.2 Fee schedule. The fees for all plumbing work shall be as set forth in the Lewisville City Code, Section 2-201. 109.3 Work commencing before permit issuance. Any person who commences work on a mechanical system before obtaining the necessary permits shall be subject to an investigation fee, in addition to the permit fee. The investigation fee shall be equal to the amount of the permit fee as set forth in city ordinance 2-201.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Unified Development Code: Supplement 3 | Code of Ordinances: Supplement 34 Update 1).
Full Breakdown
The city adopted the 2021 IPC edition by ordinance 0617-23-ORD on November 6, 2023, replacing the prior plumbing code for every water supply, drain, waste, and vent system installed in Lewisville. 1, and its code official implements, administers, and enforces the plumbing code. 2, permit fees for plumbing work are not fixed in the code itself but follow the schedule adopted under City Code § 2-201. 3 penalizes starting plumbing work early: anyone who begins work before obtaining the necessary permit owes an investigation fee equal to the permit fee, in addition to the permit fee itself, and paying that investigation fee does not excuse the contractor from any other code requirement or from further penalties under law.
1 were deleted by local amendment, removing certain provisions from the local enforcement process. 1 to the City Council sitting as the Board of Appeals; an applicant must file a written appeal with the City Manager within 30 days of the decision, and the Council's ruling on the appeal is final. 3 is what governs whether a given plumbing job requires city sign-off before work begins.
Violations & Fines
Commencing plumbing work before a permit issues triggers an investigation fee equal to the permit fee, on top of the permit fee itself, whether or not a permit is later issued; paying it does not excuse noncompliance with any other code provision or protect against separate penalties available under the technical codes or state law. Unpermitted work found during inspection can also halt the project until it is brought into compliance.
Frequently Asked Questions
What plumbing code does Lewisville use?
What happens if I start plumbing work without a permit?
Who enforces Lewisville's plumbing code and where do I appeal?
Sources & Official References
Other rules in Lewisville
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How other cities in Denton County handle plumbing permits.