Smart rainwater harvesting for traditional housing in Malaysia using BIM

Flooding in Malaysia is considered an annual disaster that happens usually from November to January. Most of the people affected from the disaster are people from rural regions. As such having traditional houses and lack of stormwater and rainwater system to combat the flooding adds the difficulties to maintain their secondary income from the crops that are planted on the land that takes out more land than enough to build an on the ground onsite stormwater detention (OSD) and rainwater harvesting tank.