Autonomous heavy machinery will replace operator-dependent excavation with GNSS-locked, LiDAR-verified, digital-twin execution. Remote-controlled machinery cannot deliver the accuracy, repeatability, or regulatory compliance required for modern UAE earthworks. Autonomy transforms machines into coordinated multi-agent systems executing a single terrain geometry. It compresses project timelines, stabilizes cost-per-cubic-meter economics, reduces environmental impact, and ensures BIM-aligned, audit-ready digital verification. Across Ras Al Khaimah, Dubai, Abu Dhabi, and the wider GCC, autonomous construction will become the baseline execution model for land transformation. Autonomous heavy machinery is the operational and regulatory standard for the GCC next generation of infrastructure and development.