This new home development by KB Home is Energy Star certified. The builder has made a commitment to adopting this certification for all of its projects nationwide. In California, Energy Star requires a minimum of 10% improvement over Title 24 energy code. At the Sierra community, south-facing orientations are at an average of 19.1% above T24 energy code standards. These all-electric homes feature a complete thermal enclosure system with comprehensive air sealing; high-performance windows and attic; heat pump water heaters; high-performance heating and cooling systems; HERS verification above-code for quality insulation installation and building leak testing; no added formaldehyde insulation; a comprehensive water management system; and energy-efficient lighting and appliances.