“ARE” was invited to do the investigation, assessment and diagnosis for eighteen villas (7 conventional type and 11 pre-cast type construction) under construction in Jubail. The work involved visual inspection, document review, extensive sampling & testing including Ultrasonic Pulse Velocity measurements and extraction of cores, develop correlation between Ultrasonic Pulse Velocity readings and Core Compressive strength, estimation of core compressive strength, structural analysis, assessment and recommendations for restoration works. “ARE” after investigation prepared the recommendation report for rehabilitation works.