Mexico’s shantytowns might seem an unlikely inspiration for a high-statuts architect, but for one suburban California designer, the low-cost Tijuana communities born of necessity represent a possible antidote to Southern Cal’s plague of gated communities and endless sprawl. “It’s not that he romanticizes poverty: he recognizes the filth and clutter, the lack of light and air, that were the main targets of Modernism nearly a century ago. But by approaching Tijuana’s shantytowns with an open mind, he can extract a viable strategy for development that is rooted in local traditions.”