The KAPSARC Building Energy Assessment Tool (K-BEAT) is a web-based energy analysis tool designed to assist users in improving the energy efficiency of residential buildings. KAPSARC research, including recent work on energy productivity in buildings, has indicated that there is significant potential for reducing energy consumption and demand in new and existing buildings in the Kingdom of Saudi Arabia. K-BEAT can assist in identifying the specific energy efficiency measures and technologies suitable for individual buildings in various regions in Saudi Arabia.