1 EXHIBIT 21.1 LIST OF SUBSIDIARIES William Lyon Homes, Inc. (formerly Presley Homes) State of Incorporation: California Presley Homes State of Incorporation: California California Equity Funding, Inc. State of Incorporation: California PH Institutional Ventures State of Incorporation: California Duxford Interiors State of Incorporation: California PH Ventures -- San Jose State of Incorporation: California Presley CMR, Inc. State of Incorporation: California HSP Inc. State of Incorporation: California Duxford Financial, Inc. (formerly Presley Mortgage Company) State of Incorporation: California The Presley Companies State of Incorporation: California Presley Southwest, Inc. State of Incorporation: Arizona William Lyon Southwest, Inc. State of Incorporation: Arizona Mountain Gate Ventures, Inc. State of Incorporation: Arizona 2 PH - LP Ventures State of Incorporation: California PH - Rielly Ventures State of Incorporation: Arizona Other names under which The Presley Companies conducts business: Presley of Southern California Presley of Northern California Presley of San Diego Presley of Arizona Presley of New Mexico Presley of Nevada Horsethief Canyon Partners Oakhurst Country Club Presley Homes Thousand Oaks, LP Presley Torrey I Associates, LLC Presley Torrey II Associates, LLC Presley Mercy Associates, LLC Cerro Plata Associates, LLC Stonecrest - San Diego, L.P. White Cloud Estates - Simi Valley, L.P. Meadowlark - San Marcos, L.P. CP at Forster Ranch, L.P. East Grove, L.P. Fairway Farms, LLC PHI Otay Ranch Associates, LLC PHI Castle Creek Associates, LLC Lyon Manor at Thomas Ranch, LLC Lyon Plantation at Thomas Ranch, LLC Lyon Ridge, LLC LP Homes #1, LLC St. Helena Westminster Estates, L.L.C. Laurel Creek Associates, LLC