yasmeen: it's made out of eight prefab panels. has a structure, a roof which is like an umbrella. so, there's a huge amount of air movement. so it's very comfortable inside. my own dream is really that if i could just save people from displacement, if they could be just these structures which will make sure that people can stay in them. fred: about five million pakistanis remain without permanent shelter. and the goal here is to not just build homes for people, but to train local residents to do it themselves. the hope is that this know-how can then be transferred village to village, creating not just sustainable homes, but also jobs. and, lari says, she's trying to make sure residents can make something to sell, which has allowed many to emerge from extreme poverty. the reason she credits for this success? yasmeen: well, i managed to get women mobilized to do things, and i found that i could get the results very quickly. fred: much of that entrepreneurship is around cleaner cookstoves. champa kanji learned to build these stoves,