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Bexar County, TX Building Safety: Green Building Code (2026)

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

Key Facts

Mandatory standard
Texas IECC 2021
IgCC
Not adopted countywide
Authority
TX HSC Chapter 388
Voluntary program
Build SA Green
Solar-ready
Optional

Summary

Bexar County has not adopted the International Green Construction Code as a mandatory standard for unincorporated areas, instead enforcing the Texas-adopted International Energy Conservation Code under Texas Health and Safety Code 388 with limited green-amenity incentives through Bexar County Public Works.

City-specific rules exist: San Antonio has its own green building code rules that differ from Bexar County's county-level regulations. If you live in San Antonio, check the city-specific page instead.

Sec. 388.003. ADOPTION OF BUILDING ENERGY EFFICIENCY PERFORMANCE STANDARDS. (a) To achieve energy conservation in single-family residential construction, the energy efficiency chapter of the International Residential Code, as it existed on May 1, 2001, is adopted as the energy code in this state for single-family residential construction. On September 1, 2016, the energy efficiency chapter of the International Residential Code as it existed on May 1, 2015, is adopted as the energy code in this state for single-family residential construction.

Source: Bexar County CodeView official code

Full Breakdown

Texas HSC Chapter 388 requires all single family residences statewide to comply with the Texas-adopted International Energy Conservation Code (currently 2021 IECC), enforced by Bexar County Public Works during permit review. Commercial buildings must meet IECC commercial provisions or ASHRAE 90.1 alternative. Bexar County has not adopted the IgCC, LEED-mandate, or net-zero standards, unlike Austin and Dallas which adopted enhanced green codes. Voluntary participation in Build San Antonio Green or LEED for Homes earns property-tax-related abatements in some cases. Solar-ready and EV-ready provisions remain optional in unincorporated areas.

Violations & Fines

IECC failure: certificate of occupancy denied until energy code compliance documented; HERS rating below 85 in some cases requires remediation; misrepresentation of green status: deceptive trade practices liability; voluntary program revocation removes tax benefits.

Frequently Asked Questions

Is the green building code mandatory in Bexar County?
No. Only the Texas-adopted IECC energy code is mandatory. Bexar County has not adopted the International Green Construction Code or LEED requirements for unincorporated residential or commercial construction.
Are there incentives for green building?
Limited. Build San Antonio Green offers a voluntary certification program. CPS Energy provides rebates for high-efficiency systems. The county itself does not currently fund green-building tax abatements.

Sources & Official References

Other rules in Bexar County

All Bexar County rules

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