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Denton, TX Building Safety: Green Building Code (2026)

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

Key Facts

Code adopted
2021 IECC
Adopting ordinance
Ord. No. 22-661 (4-5-22)
Alternative path
Energy Star or equivalent program
Testing still required
Air and duct leakage test

Summary

Denton enforces the 2021 International Energy Conservation Code on all new construction and major renovations, with local amendments set by ordinance.

The International Energy Conservation Code, 2021 edition, published by the International Code Council, a copy of which shall be filed in the office of the city secretary and available for public inspection, is hereby adopted, the same as if copied at length herein, subject to the deletions and amendments enumerated in section 28-86.

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 37 Update 1 | Development Code: Supplement 27).

Full Breakdown

City ordinance 22-661 adopts the 2021 IECC as "the Energy Conservation Code of the City of Denton," governing insulation, air/duct sealing, and energy performance for new buildings and additions. Builders can meet it through prescriptive compliance or an alternative path: a home certified under a recognized energy-efficiency program (including EPA Energy Star) and verified equivalent by the Energy Systems Laboratory, though 1- and 2-family dwellings still must pass air and duct leakage testing either way. The code official reviews plans and inspects for compliance before permits close out.

Violations & Fines

Building permits are withheld or final inspection is refused until the structure meets IECC insulation, envelope, and duct/air-leakage testing requirements; noncompliant work must be corrected before occupancy.

Frequently Asked Questions

Can I skip the energy code with an Energy Star certification?
You still need Energy Systems Laboratory-verified equivalence, and 1- and 2-family homes must still pass air and duct leakage testing regardless of the compliance path.
Does this apply to remodels, not just new builds?
Yes. Section 702.7 requires new work, including additions and alterations, to meet the same energy code material and installation standards as new construction.

Sources & Official References

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All Denton rules

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