The Hotel and Casino facilities, formerly known as “Grand Waldo Hotel”, had been acquired and redeveloped to become one of members of Galaxy Entertainment Group. The renewal works included a new basement structure extension using Caltite System for waterproofing works. As the extension works were constructed in limited space, the designer use HPI concrete for all additional basement extension to eliminate membrane waterproofing. The design is simple. The construction has succeeded in saving space, time and cost with Caltite system. A permanently DRY! and maintenance-free protection is achieved.