that's the conviction of frances co-piazessis, a mexican entrepreneur who wants all his fellow countrymen and women to have access to basic housing and services, no matter how poor. he brings microcredits and building know-how into some of the most forgotten corners of his country. there he encourages people to build your own home, and he literally gives them the tools to do exactly that. >> buenos aires. coma esta? >> fran chess co-piazessi is visiting the yucatan peninsula in southeastern mexico. he wants to convince the people there to build new houses. >> do you know how our program works? you should ask. hello. what's your name? >> he carefully tries to draw people into conversation. most of the local residents can't even imagine being able to afford a new home. they have no bathroom, so this is where they have to wash. norinda imenez is a single parent. she says she'd like to have a new house. >> they're nice, yes, but i have to be able to pay for it. >> if you start saving money and join the program, you could pay for the house a bit at a time. you don't have to pay a thousand peso