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

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

Key Facts

Launched
1990, first US municipal
Rating scale
One to five stars
Mandatory for
New homes in service area
Density bonus link
2-3 star minimum
Lead agency
Austin Energy Green Building

Summary

Austin Energy Green Building, launched in 1990 as the first municipal green building rating program in the United States, evaluates new and remodel projects on a one-to-five-star scale and is referenced by Austin Code Title 25 for incentives and density bonuses.

Sec. 388.003. (b) To achieve energy conservation in all other residential, commercial, and industrial construction, the International Energy Conservation Code as it existed on May 1, 2001, is adopted as the energy code for use in this state for all other residential, commercial, and industrial construction. The State Energy Conservation Office may adopt and substitute for that energy code the latest published edition of the International Energy Conservation Code, based on written findings on the stringency of the edition submitted by the laboratory.

Source: Austin Energy Green BuildingView official code

Full Breakdown

Austin Energy Green Building (AEGB) predates LEED and provides Austin-tailored ratings on five attributes: energy, water, health, materials, and community. New homes earn one to five stars based on points across each attribute. Commercial and multifamily projects use a separate but parallel rating tool. AEGB rating is mandatory for all new homes built in Austin Energy service territory under utility tariff and is required for residential projects above certain sizes. Several Land Development Code density-bonus programs require minimum two- or three-star ratings to unlock higher floor-area ratio. Affordability Unlocked requires three-star at minimum. AEGB also publishes plan reviews, blower-door testing, and on-site inspections.

Violations & Fines

Failure to achieve required AEGB rating blocks density bonus approvals and Affordability Unlocked entitlements. Non-rated homes inside Austin Energy service area may not receive final inspection sign-off; builders must redo testing and submit pass results.

Frequently Asked Questions

Is Austin Green Building rating mandatory?
Yes for new homes built within Austin Energy's service territory and for commercial projects pursuing density bonuses or Affordability Unlocked. Voluntary participants outside the service area can still earn ratings for marketing and incentives.
How does AEGB differ from LEED?
AEGB is older, free for Austin Energy customers, locally administered, and uses a five-star scale with categories tailored to Central Texas climate. LEED is a national USGBC program with broader certification but less Austin-specific guidance.

Sources & Official References

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