9526-02 EPC Logo_C3

We are the leading volume provider of NGBS certifications in the country with 21 NGBS verifiers and more than 30 projects that have achieved or are pursing NGBS certification across the country.

The National Green Building Standard (NGBS) is an above-code, ANSI approved, green program developed by the former NAHB-Research Center, now renamed the Home Innovation Research Labs (HIRL). This program is specialized for residential housing. The protocol is designed to accommodate both single-family and multi-family housing, with certifications awarded for new construction, remodeling, and land development. Construction deliberately focuses on healthy homes, lower operating costs, and a sustainable lifestyle.

The program requires independent third party verification and inspections during construction. These verifiers must be trained, tested, registered and approved by Home Innovations Research Labs and are required to come on site during pre-drywall and final phases of construction. A building can be awarded a Bronze, Silver, Gold, or Emerald certification level, depending on the number of green practices successfully incorporated in design and construction.

The NGBS protocol requires projects be designed and built to achieve high performance in six areas: Site Design, Resource Efficiency, Water Efficiency, Energy Efficiency, Indoor Environmental Quality, and Building Operation & Maintenance. Certification level is dependent upon achievement of measures within each of these areas. Users have the option of following either a Prescriptive or Performance based path. Current version of this protocol is the NGBS-2012 program, which requires performance minimums 15% better than 2009-IECC energy code.

US-EcoLogic / TexEnergy is a registered third party verifier for the NGBS program and currently has more registered multifamily projects with HIRL than any other verifier in the U.S.

To learn more about this program you can also visit their website at:

Who We Are

We are the largest provider of energy efficiency and green building services for single and multifamily developers in the world.

How We Work

Through a fully integrated concept-to-completion strategy, our projects reach the highest level of certification at the lowest total job cost.