TX Building Energy Code

City of Fort Worth - Residential and Commercial Green Building Requirements

AI summary · 7/12/2026

Fort Worth's building energy code requires new residential construction to meet the 2015 International Energy Conservation Code with amendments, which encourages efficient designs and may include solar water heating or photovoltaic systems as compliance paths; you'll need to meet these standards when building or significantly renovating.

Commercial and residential projects in Fort Worth must comply with either the 2015 IECC with amendments (residential) or the 2015 IECC with amendments or 2013 ASHRAE 90.1 (commercial); solar and wind technologies can contribute to code compliance, so integrating these measures may reduce design costs and help customers meet mandatory efficiency thresholds.

Fort Worth enforces energy code compliance through the 2015 International Energy Conservation Code with amendments for residential projects and offers a dual-standard option (2015 IECC or 2013 ASHRAE 90.1) for commercial projects; the code is administered through the building permitting process and applies to all new construction and major renovations in the city.

Program details

Program ID
5590
Last updated
7/16/2024

Eligibility

Sectors
commercial residential
Technologies
solar water heat solar photovoltaics wind (all) comprehensive measures/whole building

Program summary

In March 2011, the City of Fort Worth adopted the 2009 International Energy Conservation Code with amendments as the City’s building energy code.

Per state law, the City of Fort Worth now implements the 2015 International Energy Conservation Code with amendments as the City's residential building energy code. There are two codes that can be used for compliance with the state's energy conservation mandate for the City's commercial building energy code: the 2015 International Energy Conservation Code with amendments and the 2013 ASHRAE 90.1.

    Contact & resources

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