This comprehensive course explores the nexus of sustainable building design, energy efficiency, and indoor environmental quality (IEQ). Lectures span topics from foundational energy principles to advanced HVAC technologies, IAQ management, thermal comfort, visual and acoustic design, and psychological well-being. The curriculum culminates in IEQ assessment methods, emphasizing the evaluation of building performance. Practical seminars enhance learning, covering energy concepts in air, heat, water, and electricity, as well as advanced sessions on IAQ, thermal comfort, visual comfort, acoustics, and questionnaire surveys. With a holistic approach, this course equips students to design and evaluate buildings that prioritize sustainability, occupant comfort, and overall well-being. During several seminars students will experience IEQ assessment on their own using different measuring instruments, working with valid standards to assess the quality of different IEQ components either in the lecture hall or in a lab. On top of that the students will work on individual semestral work. Course is concluded by credit and exam. • Credit: based on the submitted reports and presence on the classes (max 3 weeks absences). • Exam: Presentation of the assignments 1, 2 (10 to 15 minutes), discussion