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This is a building permit application for Plumbing and Irrigation Systems within the city limits of Houston, Texas.
Last updated: January 2026
List of the currently adopted codes.
Last updated: 03-07-2024
The Houston Amendments to the 2015 Uniform Plumbing Code (UPC) were adopted on December 1, 2021, and became effective on April 1, 2022.
Last updated: 04/11/2022
This is a permit application for Boilers within the city limits of Houston, Texas.
Last updated: July 29, 2024
The 2021 International Swimming Pool and Spa Code was adopted on October 25, 2023, and became effective on January 2, 2023.
Last updated: December 26, 2023
This is a building permit application for plumbing and Irrigation systems within the city limits of Houston, Texas that is required to be completed when a homeowner will obain the permit and perform the work.
Last updated: January 2026
This is a permit application for Mechanical / HVAC within the city limits of Houston, Texas.
Last updated: January 2026
Overview of Building Code Design Criteria
Last updated: May 22, 2025.
How to guide for purchasing a trade permit online through iPermits portal.
Commissioning statement for the mechanical systems, service water heating systems, and building envelope.
Last updated: February 2024