The cooling energy consumption on tropical climate represent approximately 40% of the energy bill of tropical coastal hotels. This impact affects the economy of countries like Dominican Republic, which recognizes its value and its determined to invest in more sustainable strategies to mitigate this challenge along with the constantly increasing menace of climate change. In order to provide a solution, a comparative research study in combination of on-site experience and computational design is made to discover if the merging of passive design strategies with sustainable materials alone is sufficient to reduce the cooling energy demand to 50%.