S11 House, located in Petaling Jaya, is Malaysia’s first Green Building Index Platinum rated house that won the Tropical Building Category of the Asean Energy Awards in 2013, designed by Ar. Dr. Tan Loke Mun. This single residential structure was conceptualized along the lines of a large tree canopy and is equipped with 5 KW peak photo-voltaic installation on the roof; rainwater is also collected on the canopy roof drains and is stored in harvesting tanks. Water features and multiple pools are located at the two extreme north-south ends to provide evaporative cooling for the house. The house proves that even in the hot and humid tropical climate of South East Asia, it is possible to lessen a building's reliance on air-conditioning and also minimize its use of other natural resources, most