Buildings energy efficiency has become a key focus in modern construction and development. Efficient buildings are not only environmentally responsible but also provide long-term financial benefits through reduced operating costs. Energy efficiency planning begins at the design stage. Optimized layouts, efficient space utilization, and performance-focused planning can significantly reduce energy consumption. When energy efficiency is considered early, buildings perform better throughout their lifecycle. Energy-efficient buildings also offer increased asset value. Lower energy costs, improved comfort, and sustainability compliance make properties more attractive to investors and occupants. In many cases, energy-efficient planning helps meet regulatory requirements and future-proofs developments. CADMATIX ENGINEERING WORKS L.L.C supports building projects by providing energy efficiency design support and clear CAD documentation. Our focus is on practical planning strategies that enhance performance while maintaining functionality and usability.