This report provides a summary and analysis of the presentations, discussions and recommendations made at the SEforALL Workshop held in February 2017 in Japan. The three-day workshop consists of Presentation of Country Reports, Lectures and Site Visit, Small Group Discussion, and Presentation of Action Plans, on theme of Building Energy Codes. Attendees from 8 ASEAN member states, namely Cambodia, Indonesia, Lao PDR, Malaysia, Myanmar, Philippines, Singapore and Thailand, actively participated in the workshop to bring productive discussions and Actions Plans which are presented in the following chapters. The agenda of the workshop and the list of participants are shown in Annex-1 and -2 respectively.