6306 Fm 359 Road S This prestigious 12.6-acre Fulshear sanctuary is where sophisticated ranch architecture meets world-class engineering. Designed for those who value both beauty and performance, this custom-built ICF fortress features R-50 equivalent insulation, 200 mph wind-rated walls, and a 50-year concrete tile roof for ultimate durability. The property is powered by a 19.2 kW solar array and a 30.5 EER geothermal HVAC system, supported by a 20 kW automatic backup generator and a 500-gallon buried propane tank. Inside, high ceilings and rich engineered wood floors flow into a gourmet kitchen with custom cabinets, granite countertops, and a spacious island. The private primary suite offers a discreet safe room and pool access. Outside, enjoy 11.6 acres of agricultural-exempt land, a 1, 500 sq. ft. steel barn, 1-acre stocked pond with a pier, and a resort style gunite pool. Complete with a 4-car garage, this estate is an unrivaled masterclass in luxury, security, and sustainable living.