The Palestinian Authority government has estimated that it could cost $6 billion to rebuild the territory: 50,000 homes have been totally or partially destroyed, roughly 250 factories have reportedly been rendered inoperable, and Gaza's sewage treatment facility and power plant have been damaged, shrinking the available supply of drinkable water and creating a potential health crisis for residents. — Foreign Policy
The recent (and ongoing) Israeli invasion of the Gaza strip has taken a massive toll on the densely-populated urban area's infrastructure. While the need to begin reconstruction is urgent and unquestionable, the mechanics are much trickier. In order to get cement into Gaza, Palestinians must either smuggle it in or wait for Israel to slacken the seven-year old embargo. Israel, on the other hand, remains opposed to easing restrictions on construction materials after Hamas used imported cement to construct its network of tunnels, although it has recently signaled that it will slacken some elements of the blockage. The process will begin with a donor conference with funds processed by the Palestinian Authority, which is supposed to lead reconstructive efforts.