Exhibit 21 BANK UNITED CORP. SCHEDULE OF SUBSIDIARIES BNKU Holdings, Inc. Allecon Reinsurance Company BNKU HOLDINGS, INC. SCHEDULE OF SUBSIDIARIES BUC Title Venture Corp. Bank United BANK UNITED SCHEDULE OF SUBSIDIARIES Bank United Securities Corp. Commonwealth United Mortgage Company Commonwealth General Services Agency, Inc. United Agency Corporation United Capital Management Corporation United Mortgage Securities Corporation CTL Leasing, Inc.