EXHIBIT 21.1 Subsidiary of BYL Bancorp The current wholly-owned subsidiary of BYL Bancorp is BYL Merger Corporation. Pursuant to the Plan of Reorganization and Merger Agreement (the "Plan") dated May 2, 1997, attached as Annex I to the Written Consent Statement/Prospectus, upon consummation of the Plan, BYL Merger Corporation will merge into Bank of Yorba Linda, which will then become a wholly-owned subsidiary of BYL Bancorp.