BIM has changed how façades are designed in the AEC field. Using BIM for building exteriors helps create clear, energy-saving, and appealing designs. So, what are BIM façades? These are 3D models that combine materials, energy use, structural details, and weather information to build and care for building exteriors. A unified platform for BIM façade modeling boosts teamwork among architects, engineers, and façade experts. This technology allows all parties to view the façade in 3D before it is built. It also provides up-to-date information on materials, textures, and structures, enabling early design changes. The main advantages include energy efficiency. By using insulation, thermal data, and solar shading details, BIM enhances the façade for better energy savings and lower ongoing costs. Additionally, it helps architects with cost estimation and material selection, such as glass and stone, assessing their impact on both appearance and budget. BIM also helps find issues with the alignment and clashes between façade elements and structures, cutting down on expensive delays. The complete façade information also assists building managers with maintenance and upgrades. In summary, BIM façade modeling enhances project execution through better visualization, energy efficiency, and collaboration. It helps ensure that façade designs are functional, sustainable, and cost-effective, transforming current building design and construction practices.