Construction and substation surveys are vital for project success, ensuring structures adhere to precise specifications and legal boundaries. They help identify potential issues early, such as soil instability or drainage problems, saving time and costs. For substations and overhead transmission lines (OHTL), surveys provide critical data on site conditions and environmental impacts, influencing planning and execution. Advanced techniques like LiDAR and drones enhance accuracy, leading to safer installations and a more reliable energy supply. Prioritizing these surveys ensures compliance, structural soundness, and long-term sustainability in infrastructure projects.