A research project in the state of Idaho identified opportunities to reduce homeowner energy costs in residential single-family new construction by increasing compliance with the current state energy code. The study was initiated in January 2018; data collection began in March 2018 and continued through June 2018. During this period, research teams visited 127 homes during various stages of construction, resulting in a collection of data based on observations made directly in the field. Analysis of the data has led to a better understanding of the energy features present in homes and indicates nearly $500,000 in potential annual savings to Idaho homeowners that could result from increased compliance with the Idaho Energy Conservation Code.