: Natural disasters have significantly increased for the last 40 to 50 years. In 1992, more than 368 natural disasters were reported, affecting 170,478,000 people. In 2001, this number more than doubled with 712 disasters reported and 344,873,000 people impacted . A disaster is the occurrence of an extreme hazard event that impacts on vulnerable communities causing substantial damage, disruption and possible casualties, and leaving the affected communities unable to function normally without outside assistance. Reconstruction projects are defined as the modification, conversion and complete replacement of an existing facility that involved expansions, additions, interior renovation, or upgrading the functional performance of a facility. Also reconstruction can be referring to restoring basic services and life support infrastructure to normal. Sustainable reconstruction offers the chance to improve the quality of buildings, the environment and living conditions in disaster-affected regions. Disasters due to natural hazards create enormous pressure to provide survivors with adequate permanent housing as rapidly as possible.