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Katy, TX Building Safety: Building Permits (2026)

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

Key Facts

Adopted code
2021 IBC and IRC
Governing section
Sec. 3.02.051
Effective
Jan 1, 2024 (Ord. 3116)
Permit office
Permit & Building Services Division
Local amendments
Sec. 3.02.053

Summary

Katy has adopted the 2021 International Building Code and International Residential Code by reference, so a permit issued by the city's Permit and Building Services Division must be secured before new construction, additions, remodeling, or roofing begins.

The International Building Code, 2021 edition, and appendixes thereto, and subsequent amendments and additions, is hereby adopted by reference as though it were copied herein word for word except for the local amendments provided for in section 3.02.053.

Full Breakdown

Section 3.02.051 of the Katy Code of Ordinances adopts the 2021 International Building Code by reference, and section 3.02.052 adopts the 2021 International Residential Code, both amended by Ordinance 3116 and effective January 1, 2024, with local amendments in section 3.02.053. Under the adopted code, the Permit and Building Services Division issues a permit and reviews plans before work starts. Permits cover new construction, additions, remodeling, roofing, HVAC, electrical, plumbing, water heaters, pools and hot tubs, driveways, and accessory buildings such as carports, garages, and storage sheds. City inspectors verify the work at required stages.

Violations & Fines

Building without the required permit triggers a stop-work order and citation to municipal court; Texas law caps fines for building and health-and-safety code violations at $2,000 per day.

Frequently Asked Questions

Which building code does Katy enforce?
Katy adopted the 2021 International Building Code and 2021 International Residential Code by reference under section 3.02.051, effective January 1, 2024, along with the 2023 National Electrical Code.
When do I need a building permit in Katy?
Before new construction, additions, remodeling, roofing, HVAC, electrical, plumbing, water heaters, pools, and accessory buildings. The Permit and Building Services Division reviews plans and inspects the work.

Sources & Official References

Other rules in Katy

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