Prairie Crossing is a conservation community in Grayslake that has led the way for green community development in the U.S. It combines energy-efficient architecture with Midwest vernacular styles and is unique among housing developments for its use of accomplished Chicago-area architects. The 359 single-family homes were designed to the standards of the U.S. Department of Energy’s Building America Program by Margaret McCurry, James Nagle, Dirk Danker, Frederick Phillips, Linda and Mark Keane, Doug Farr, and Howard Decker, among others.