We certify every new home is energy efficient and confirmed compliance with code requirements and claims about product performance. From plumbing to insulation, structural building components to green homes, our certification is proof of compliance. A new green multifamily building can be awarded a Bronze, Silver, Gold, or Emerald certification level, depending on the number of green practices successfully incorporated in its design and construction. The lower the number, the more energy efficient the home.The U.S. Department of Energy has determined that a typical home scores 130 on the HERS Index while a standard new home is awarded a rating of 100. Any score below 100 is great. Our most recent home scored 59. Our rating with the NGBS is GOLD, which is the highest standard.