<Page> EXHIBIT 21.1 LA QUINTA PROPERTIES, INC. SUBSIDIARIES <Table> <Caption> NAME STATE OF INCORPORATION ----- ---------------------- Meditrust TRS, Inc. Delaware La Quinta TRS, Inc. Delaware La Quinta TRS II, Inc. Delaware La Quinta TRS III, Inc. Delaware La Quinta TRS IV, Inc. Delaware La Quinta Investments, Inc. Delaware LQ Investments I Texas LQ Investments II Texas LQ-LNL Limited Partnership Texas LQ-East Irvine Joint Venture California LQ-Baton Rouge Joint Venture Texas LQ Motor Inn Venture - Austin No. 530 Texas La Quinta San Antonio South Joint Venture Texas La Quinta Denver - Peoria Street, Ltd. Texas LQ - Big Apple Joint Venture Texas La Quinta Inns of Lubbock, Inc. Texas La Quinta Inns of Puerto Rico, Inc. Delaware La Quinta Plaza, Inc. Texas La Quinta Inns de Mexico S.A. de C.V. Mexico La Quinta Financial Corporation Texas La Quinta Realty Corp. Texas LQI Acquisition Corp. Delaware La Quinta Motor Inns Limited Partnership Delaware La Quinta Development Partners, L.P. Delaware LQM Operating Partners, L.P. Delaware Meditrust Healthcare Corporation Delaware MT Limited I LLC Delaware T and F Properties, LP Delaware MT General LLC Delaware Meditrust of Bedford, Inc. Delaware Meditrust of Kansas, Inc. Kansas Meditrust Mortgage Investments, Inc. Delaware Meditrust Financial Services Corporation Delaware Meditrust Management Company Massachusetts Meditrust Acquisition Company LLC Delaware Meditrust Acquisition Company II LLC Delaware <Caption> LA QUINTA CORPORATION SUBSIDIARIES NAME STATE OF INCORPORATION ----- ---------------------- MOC Holding Company Delaware La Quinta Leasing Company Delaware TeleMatrix Equipment LLC Florida La Quinta Inns, Inc. Delaware TeleMatrix, Inc. Florida LQ-WB, LLC Delaware LQ-West Bank Joint Venture - 1982 Texas La Quinta - Wichita Kansas No. 532, Ltd. Texas LQP Acquisition Corp. Delaware </Table>